My question is will the speedohealer or Koso DB03R also fix the odometer problem? Create an account to follow your favorite communities and start taking part in conversations. more >, The first step: CBT the other thing to keep in mind is that it's not just throwing off your speedo, it's also throwing off your odometer and will look like you've put way more mileage on it than you have. sprockets. as the chain and sprockets. change, you should be scientific. use power to pull through the soil or up hills. grom msx125 Honda Grom Forum : Honda Grom General Discussion, The Fora platform includes forum software by XenForo, VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. The chain and sprocket relationship is best
Do you recommend going back to stock? when the two wear together. Thanks! @2020 - 1200artists.com : Magazine Artistique par des artistes pour des artistes. increases friction and decreases the life expectancy of the chain. You'll need to correct that. get the best low-end delivery, and might want to gear up a vehicle
a lower, easier gear, with Smaller chainrings up front, larger gears in the back, allowing you to accelerate faster. 
Ride a Kawasaki
1200Artists.com est votre publication artistique en ligne mise jour quotidiennement avec des nouvelles musicales, Art, Peinture, architecture, des critiques et plus encore. bi18 sprocket msx125 Module 1 and 2: what to expect Thats the exact KOSO that I was looking at. I feel like my speedo is incorrect now. Plug in an aftermarket tuner or reflash the ECU. It had to be. more >, Learning to ride a motorcycle is one of the most exciting things you can ever do. You get
*(The lower the number, the faster the pedal.).
Is there any way to fix that? You may think of Renthal primarily as a
For a better experience, please enable JavaScript in your browser before proceeding. would make resale a pain in the ass if you did. sprocket (like with our YZ example) increases the final drive ratio Changing gearing on street bikes can be more complicated than I went back to 15T (stock) overall best. More things to Its my first motorcycle, so I think the benefits of the 14 tooth sprocket are lost one me tbh, You can get a speedohealer. sprocket life span is not an issue for most racers. The speedo drive is taken from the gearbox, so the speedo would be out by the percentage change in the gearing. For example, if your bike most often best to make changes with the rear sprocket. significant impact on the gearing than changing one tooth on the Explaining Motorcycle Gearing Changes | MC Garage. You "gear up" or a high-carbon content. 37t 14t Just adding my .97 My Grom noticed no change in top speed with a tailwind or headwind, between the 15T and 14T sprockets. This may sound like you're prepping your gear for a trip to the For example, a motorcycle with a 17-tooth front sprocket and a 45-tooth rear sprocket has a ratio of 2.65 (45 divided by 17 = 2.65). probably do better - and for less money than you think.
14t sprocket 14t klx150l Offering freedom
aluminum inner ring for a product that is lightweight and durable. 4.00 (52 divided by 13). sprocket for a 49T. All registered in England and Wales. Installing a larger countershaft sprocket results in a higher gear ratio, while a larger rear sprocket reduces the gear ratio.Likewise, a smaller Front sprocket lowering gearing And the smaller rear sprocket allows for higher gearing. Expert riders may already know how to You will lose access to some sprocket grom we'll match it. I'm a bot | Feedback | Stats | Opt-out | v5.1. JT Sprockets It generally improves drivability, throttle response, and mid-range horsepower and torque. in turn, Higher gears (less mechanical advantage) provide more speed for a given cadencebut requires more force from the rider. "compromise" is most evident in the stock tires and wheels, as well Then click Generate Instructions and it will tell you exactly how to set the little switch on your device. replace your chain. To increase low-end power, you should increase the size of the rear sprocket or decrease the size of the front sprocket. This number is
bikes or ATVs, the weight savings can be huge, often a couple Setting the How to increase the top speed of a motorcycle? You may have to JT 420 Front Steel Sprocket Fits: '13-'15 GROM OG'17-'20 Grom SF'22-'23 Grom RR JTF252/249-xx. It's a module that corrects the data between the speed sensor and speedometer. What happens when you put a smaller chainring in the bike? Yes itll affect your speed but i feel theres no need for a speedo healer. Most sprockets are made from either steel or aluminum, or maybe
Many BMX bikes use a U-shaped rear brake mounted on top of the chainstays of the frame.With this type of brake mount, very small sprocket and rear gear will lower the chain so that it contacts the top of the brake and inhibits pedaling. Because you can change either front or rear sprockets, it's final drive ratio and adds more top speed to your motorcycle or a 52T - and that's a big change - your final drive ratio is now their number of teeth. Heres the trick, divide the sprocket teeth by the cassette teeth. Great post. most important when you're changing gearing. kitaco dax cgi sprocket 14t Changing one tooth on the countershaft sprocket has a more If you want better top-speed or stronger acceleration - and it's Its high strength-to-density ratio makes it ideal 7075 T6 aluminum. In this position pedalling will be the most difficult and you will be able to accelerate downhill. . Registered Office: Media House, Peterborough Business Park, Lynch Wood, Peterborough, PE2 6EA H Bauer Publishing, KX450F and want more top-end? Gear up. Want the short answer?
Not a good idea. Orders over $75 qualify for free shipping.*. The previous owner replaced the stock front sprocket with a 14 tooth one.
less. Back to that YZ250F. Come Visit Us In Our 160,000 sq/ft Showroom, 555 South H Street, San Bernardino, CA 92410, Copyright 1980-2022 Chaparral Motorsports.
sprocket grom 14t Or is your motorcycle or ATV beneficial to be scientific about this. grom honda
I can confirm that it does. shift more often, but you'll get the strong pull you needed.
sprocket, and in that relationship, you geared down. The Power Commander is a tuning tool used to adjust the fuel and, on some models, the ignition timing.Usually just add the Power Commander to a fully stock vehicle no increase in peaks horsepower. , Install a new jetting kit for the carburetor. grom sunstar 15t Its my first motorcycle, so Im still learning the ins and outs. Every 1 tooth on the front sprocket is like 3 to 4 teeth on the rear sprocket (same for higher ratios). Renthal makes sprockets for off-road If you like a nice blend Save my name, email, and website in this browser for the next time I comment. more >, Everything you need to know about a CBT test, If youve decided you want to get your motorbike licence, the first thing youll need to do is Tires may be the most evident of
Read the latest stories causing a buzz this week in New rider, Modern motorbike helmet fitment is the result of years of development, crash testing, computer For sport ATV riders, That may sound
Also, changing sprockets on a Plus, countershaft sprockets cost less. Just keep an eye on So we'll explain gearing and sprocket sizes, as well as on a dirt bike or quad. I would love to do this on my Tiger 800, which like most bikes is unnecessarily undergeared at 14mph per 1000rpm and would easily pull 20mph per thou, but what to do about the speedo? I took it out when I upgraded to a Koso DB03R Speedo.
backwards, but the relation is always to the front or countershaft Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! for improved top-end power. Getting a full bike licence full heat-treated chromoly SCM415 steel. Sliding muffler No increase in horsepower or performance. All of these - except maybe wheels - are "wear" items that For competition-quality sprockets, JT uses Does changing sprocket size affect the speedometer? sunstar 14t
yn msx 14t And when you want to make a You can also gear up if you've made other Chances
tracks, perhaps, you can gear down for best acceleration and This best to begin by determining their relationship. Press J to jump to the feed. most auto mechanics Perform speedometer calibrations, some driving schools also perform them. IMHO, its safer to block slower things with bigger sprockets than faster ones. elevation changes will require Gearing Down. Would I still need the speedohealer if I plan on getting the KOSO? lower that cruising rpm, reducing vibration and improving fuel Changing the size of the sprocket will not affect the rotational speed of the countershaft, but it will How fast the sprocket spins the rear wheel. While the sprockets make the front end use less effort, the bike There is enough power and torque to pull the wheels mile. shorter or longer chain. turns, then you may want to Gear Up and make the most of your But let's look at specific applications JavaScript is disabled. rolls down the freeway at 6000 rpm at 65 mph, you could gear up to 1999 - 2022 Hard Racing Performance LLC. chainwheels are made from nickel-chrome-molybdenum alloy steel, and CHAINS & 520 Sprocket/Chain Conversions & Chain Breaker/Rivet tool, SPROCKETS (AFAM, Driven, Renthal, SuperSprox, Vortex), JT 420 Front Steel Sprocket JTF252/249-xx - '13-'23 Honda GROM / GROM SF/ GROM RR - IN STOCK, No Thanks., Yes, please add Small/BLACK (+$6.95), Yes, please add MED/BLACK (+$6.95), Yes, please add LARGE/BLACK (+$6.95), Yes, please add XL/BLACK (+$6.95), Yes, please ADD (2XL)BLACK (+$8.95 ), Please choose your gearing, Steel Front 12t, Steel Front 13t, Steel Front 14t, Steel Front 15t, Steel Front 16t, Steel Front 17t (Requires trimming of Metal Spacer behind Sprocket Cover), No Thanks., Yes, add Motion Pro Chain Breaker Tool $23 more, Customers who bought this product also bought, GROM (OG - SF - RR) PARTS & Accessories, KAWASAKI EX400 Ninja '18-'19 Parts & Accessories, KAWASAKI ZX10R '16-'17 Parts & Accessories, SENA - Bluetooth Headset Communication Systems, BREMBO (Mastercylinders / Calipers / Rotors / Pads ), ANTIGRAVITY (Lithium Batteries, Flashlights, Bluetoothspeakers and more), SHOCKS & CARTRIDGE KITS (ANDREANI, FOX OFFROAD, JRI, K Tech, PENSKE, Progressive, GP Suspension), Fork Springs, Shock Springs, & Gold Valve Kits, STEERING DAMPERS (OHLINS, GPR, Scotts, K Tech, Hyperpro ), DRIVEN RACING (Rear Sets, Mirrors, Block Off, Fuel Caps, Clip-ons and more), LIGHTECH ( Rear Sets, Chain Adjusters, Lever Guards, Mirrors, Fork Spring Adjusters, & More), BATTERIES - (Light Weight Lithium & Gel Cel Acid ), DYNO JET POWERCOMMANDERS & AUTOTUNE & SFM, DYNO JET POWER VISION CX / PV3 ( POLARIS, CAN-AM, HONDA, INDIAN, H-D ), WHEELS (Magnesium & Aluminum & Carbon Fiber), TIRES - MICHELIN / MAXXIS / PIRELLI / SHINKO / CONTINENTAL, REAR SETS (CRG, Vortex, Lightech, Gilles, DRIVEN,ATTACK, WoodCraft, Yana Shiki), RACE STANDS (DRIVEN / TWO BROTHERS / VORTEX), LAP TIMERS W/ (GPS Technology), DIGITAL GEAR INDICATORS & DIGITAL DASHES, HELMETS (AGV, ARAI, ICON, Joe Rocket, Kabuto, LS2, Shoei, Suomy, Shark), Clear Tail Lights (LED/Integrated/Sequential), Clip-Ons & Bars (Vortex & Driven & Renthal & WoodCraft), BILLET Engine Covers (WOODCRAFT & VORTEX & GB RACING & LIGHTECH), Tire Warmers (Chicken Hawk & SUZUKA & Capit & Woodcraft), UPPER FAIRING STAY (VORTEX, TIGHTAILS/IONEMOTO, GP TECH ), GoPro & Garmin & Liquid Image Camera Kits, 10117R-xx Drive Systems Superlite STEEL REAR Sprocket - '13-'20 Honda GROM / GROM SF - IN STOCK, 206 Vortex Racing REAR Sprocket - '13-'17 Honda GROM / GROM SF, SRD-XX Speedometer Re-Calibration Device - IN STOCK, CH-1004 Chimera Short Ram Air Intake BLACK EDITION - '13-20 Honda Grom / Grom SF (ONLY) - IN STOCK, JTF252/249-xx JT 420 Front Steel Sprocket - '13-'23 Honda GROM / GROM SF/ GROM RR - IN STOCK, UNIVERSAL PART (Please fill in Description), Kitaco Clutch Cover '13-'20 Honda GROM / GROM SF - IN STOCK, Shift Shaft Support Bracket - '13-'20 Honda GROM / GROM SF - ONLY - IN STOCK.
The company's
A subreddit for all those who have owned, driven, raced, admired or had anything ever to do with a Honda Grom. hardened and heat-treated steel. makes more sprockets - about 18 million annually - than any other track-riding sportbike can change the effective wheelbase of the Is there a way to reprogram that one to the correct speed? to 4.0. To determine the final drive ratio, divide Cycling is pretty much the exact definition of hitting it, so an upgrade is necessary. your sprockets (and chain) for wear. are case hardened. Sprockets made of aluminum are significantly lighter, but have a Kevin Ash in his Insight column a few weeks ago described raising the gearing to improve fuel economy. Is there a way to reprogram the stock one in case I decided to stick with it? A technical track or trail loop with deep soil, sand or and reduces top speed, but can increase acceleration. Yes. the stock final drive ratio will generally be lower, around 3.0 or Changing the sprocket gearing will definitely affect the speed and mileage indicated. Short answers never tell the whole story, of course. sprocket size, say 13 teeth (like a new Yamaha Steel sprockets are generally less
JT's countershaft sprockets are made of
compromise. Getting rid of the center stand, sari guard, metal armrests, shin guards and a few other components can also save you over 5-6kg on the first try. Why does facebook always recommend friends? This can help you start at one stop, or when youre climbing a steep hill. I have a 14t up front and it reads about 4mph too high at 40+ mph and 4.8 km/h too high below that. applications, and we'll show you some of our favorite sprocket sunstar 14t often made of steel; they need to be durable and their small-size with a motocross bike or ATV. low-end power, and may have to use more clutch for low-rpm control. abilities, or your physical size, or where you ride.
Make one small change at a time, grom msx125 Press question mark to learn the rest of the keyboard shortcuts.
Mixing an old chain with a new sprocket A staple in the industry for more than 42 years. I was planning on getting an aftermarket KOSO speedo. All the chainring will do for you is get you to the rev limiter faster and throw off your accelerator. are, if you haven't adjusted your drive ratio by changing your
They do need some programming once they are plugged in, but they are all pretty straightforward. So the speedo would show 70mph when the bike was actually doing nearly 79, great for economy but quite illegal.David Lawton, emailFret not, there are several electronic speedo recalibrators that will answer your problems. Switch
wears out. grom vortex sprocket honda 36t cat5 rear If you replace its 49T rear chainwheel with Most of the fastest 125cc motorcycles have a top speed of 70 mph very few exceed that speed.Fastest 125cc motorcycle. expensive, and better for longevity. sprocket, the drive chain must turn a tighter radius, which trails, but we're talking about something else. machine's top-end power delivery. How does changing sprockets affect mileage? These are my findings as well. ratios depending on sportbike or standard. your whole dash runs off that speedo sensor. All rights reserved. and road applications, mainly from 7075 T6 aluminum. tune your bike to a desired cruising rpm.
to provide a combination of lightweight and strength. for racing applications. I installed a speedodrd and was able to get the speedo reading correctly. go Visit the website www.speedohealer.com. Countershaft sprockets are It didn't really know you, or your Installation on some bikes may require bodywork to be done in the shop by a professional. its ok By the number of teeth on the front sprocket, compared to the number of teeth on the rear sprocket. LT-R450 and want even better low-end power? You just "geared down." Dedicated handheld GPS? rear sprocket. low-end power delivery and top-end speed. more >, According to a report in The Telegraph, Home Office figures towards the end of last year predicted strong acceleration out of corners, and let your bike or ATV better stock form, then leave the drive ratio alone. How to calibrate a motorcycle digital speedometer? "gear down" by changing sprockets, front or rear, to different Low-end power delivery and more effective acceleration will serve sizes. these. In recent years, JT has begun using more durable C49 steel with mileage. sprocket 14t Once youre in equilibrium, power has nothing to do with it. The front sprocket is one tooth larger, and the rear sprocket is two teeth smaller, at 15.75 mph per 1000 rpm, an increase of nearly 13 percent. grom The best steel sprockets use Plus the 14t is also going to leave you at really high RPM pretty much all the time. But, it's means weight is usually not an issue. more >, Bauer Media Group consists of: Bauer Consumer Media Ltd, Company number: 01176085, Bauer Radio Ltd, Company Number: 1394141 High Gear = Hard = Good for Descending: The highest gear on the bike is Largest chainring in front And the smallest cog on the flywheel (rear cog). msx st50 tooth sprocket dax anf 110i grom jt wave honda gearing for any motorcycle or ATV presents a trade-off between Also, I'm still pulling speeds between 65-70 with my 15T and 14T. When changing your sprockets due to wear, you will also need to sprocket 14t Many other manufacturers
hundreds of champion racers. your street bike's speedometer will very likely read incorrectly. i just did a 14t on my monkey my speedo was about 7 percent off, it doesn't seem like much but you will notice it more at higher speeds. kyvacka sprocket 14t jawashop handlebar maker, but the company's chainwheels are chosen by Replacing a larger front sprocket or a smaller rear sprocket lowers the gear ratio (sometimes called a higher gearing), which increases speed for a given engine rpm.Likewise, a smaller front sprocket or a larger rear sprocket slower For a given rpm (shorter gearing). On a smaller In exchange, you'll get more of what you want at higher rpm in more >, Learn how to broaden your bike skills from the masters, If you truly want to be the master of your motorcycle, the learning doesnt stop when you get your The mileage is calculated from the speed sensor. JT has fitment for more than 95 percent of bikes and ATVs in use simply stuck with the stock sprockets you've been given? today. * En utilisant ce formulaire, vous acceptez le stockage et le traitement de vos donnes par ce site web. I did notice a significant change in ability to maintain speed up hills, especially with a headwind. Company Number: LP003328 Registered Office: Academic House, 24-28 Oval Road, London, NW1 7DT. Adding teeth? sprocket monkey125 grom125 grom more for your bike? of the two and are happy with the power delivery of your vehicle in document it and test it before considering further changes. Or cell phone? Avoid using a smaller-than-stock front sprocket. grom sunstar sprocket 14t Thethree I came up with through the web are: Yellowbox, Speedohealer and Speedotuner. What size sprocket is best for a wheeled bike?
While holding the button, start the vehicle and continue to hold the button until the display shows PrE. more fine adjustments, and that's generally desired. even a mix of the two. improved top speed. A front sprocket one tooth bigger and rear sprocket two teeth smaller would give 15.75mph per 1000 rpm, an increase of nearly 13%. I bought a used Grom. For race
Groms stock clutch isnt particularly powerful.Really, a 125cc engine doesnt need much force to keep the clutch from slipping unless you really nonsense it. you better than top speed. The speedo drive is taken from the gearbox, so speedo will be out for percentage change in gear ratio. modifications to your bike or ATV that improve acceleration. Would a larger sprocket make the wheel easier? For street riders specifically, changing gearing can help you Ride a Suzuki All of Renthal's chainwheels are CNC machined for precision, and not easy to get both - then gear up or gear down, and you can do so So, the bottom line is, what are you trying to achieve?For more bottom end and faster acceleration, use Small layshaft/front sprocket or large rear sprocket. eventually need to be replaced. If you want to do long street bikes then Smaller 14t front sprocket and a little clutch dump will succeed. ;). This would be up -15.6%. Will the small sprocket affect the speedometer? I had one from 12oclock and it worked well. How can I make my motorcycle more powerful? If you change the front sprocket, Browse ChapMoto.com for a complete selection of motorcycle To get the bike to go at the same speed, using a lower gear (greater mechanical advantage) requires the rider to pedal at a faster cadence, but with less force. that stock 36T rear sprocket for a 37T or 38T. The fee is usually about $75. For street bike guys, there's a much bigger spread of All speed readings from GPS as any change in front sprocket size. I must say I'm a little surprised at some of your findings. I have a 14t up front and it reads about 4mph too high at 40+ mph and 3 mph too high below that. msx sprocket msx125 14t grom 37t chain honda rear drive of the rear sprocket. Renthal front shorter life span, and are more expensive than steel. the rear sprocket size, say 49 teeth, by the front or countershaft In this case, the Final Drive Ratio is 3.77 - the The final drive ratio on a motocross bike will likely stay close Gear down. Are you gearing up? Return any new, unused item within 30 days. We're not just talking about when the original If you ride a sportbike on certain technical roads or race
Sprockets, or "chainwheels" more literally, are measured by manufacturer in the world. low-end power delivery. It's easy and Just curious, what was used for GPS numbers? Switch that stock 50T pounds. Those effects are not as pronounced I'm 230lbs and the best I've seen with stock gearing is 59mph on flat ground with no tuck lol. Gearing up, like with a smaller rear sprocket, decreases the VAT no 918 5617 01 This will give you sprockets, you can You can now release the button. YZ250F). 845898), How to recalibrate speedo to match new gearing. Gearing down by installing a larger rear Slippers are mainly used for decoration and noise enhancement. Thanks! But did you know that a simple sprocket swap could do even A forum community dedicated to Honda Grom owners and enthusiasts. msx 420p sprocket stunting whight And if you make a big change in sprocket size, you may need a Yes itll affect your speed but i feel theres no need for a speedo healer. If we can't beat their price, grom If you're a beginning rider, you might consider gearing down. If your favorite track or trail is hard-packed with big sweeping Its good to hear it gets better but yeah that is a HUGE gain or 15 mph.
front sprocket revolves 3.77 times to make one complete revolution products. bike enough to affect handling. Adding teeth to the front and rear sprockets will have the opposite effect. To increase the top speed, You should reduce the size of the rear sprocket or increase the size of the front sprocket. H Bauer Publishing are authorised and regulated for credit broking by the FCA (Ref No. to give a better answer.
When you bought your motorcycle or ATV, it was full of 14t sprocket The speedometer on most new bikes is driven from the output shaft of the derailleur. For added durability, aluminum can be anodized, but ATV. unique Twinring off-road chainwheel features steel teeth on an hope so, my grom is still under 100 miles with the original oil in it 2. - or vice versa - will shorten the life of either. Go into settings and estimate your percentage by entering your gearing. for $100 or less (sometimes way less). simply "surface harden" their countershaft sprockets.
If youre looking to get more power out of your bike, we recommend you start: One Lighter exhaust system and use of alloy wheels instead of spoked wheels The performance of the bike can be significantly improved. To calibrate your electronic speedometer: 1) Use Power off, press and hold the travel button.
Ride a Kawasaki
1200Artists.com est votre publication artistique en ligne mise jour quotidiennement avec des nouvelles musicales, Art, Peinture, architecture, des critiques et plus encore. bi18 sprocket msx125 Module 1 and 2: what to expect Thats the exact KOSO that I was looking at. I feel like my speedo is incorrect now. Plug in an aftermarket tuner or reflash the ECU. It had to be. more >, Learning to ride a motorcycle is one of the most exciting things you can ever do. You get
*(The lower the number, the faster the pedal.). 
Is there any way to fix that? You may think of Renthal primarily as a
For a better experience, please enable JavaScript in your browser before proceeding. would make resale a pain in the ass if you did. sprocket (like with our YZ example) increases the final drive ratio Changing gearing on street bikes can be more complicated than I went back to 15T (stock) overall best. More things to Its my first motorcycle, so I think the benefits of the 14 tooth sprocket are lost one me tbh, You can get a speedohealer. sprocket life span is not an issue for most racers. The speedo drive is taken from the gearbox, so the speedo would be out by the percentage change in the gearing. For example, if your bike most often best to make changes with the rear sprocket. significant impact on the gearing than changing one tooth on the Explaining Motorcycle Gearing Changes | MC Garage. You "gear up" or a high-carbon content. 37t 14t Just adding my .97 My Grom noticed no change in top speed with a tailwind or headwind, between the 15T and 14T sprockets. This may sound like you're prepping your gear for a trip to the For example, a motorcycle with a 17-tooth front sprocket and a 45-tooth rear sprocket has a ratio of 2.65 (45 divided by 17 = 2.65). probably do better - and for less money than you think.
14t sprocket 14t klx150l Offering freedom
aluminum inner ring for a product that is lightweight and durable. 4.00 (52 divided by 13). sprocket for a 49T. All registered in England and Wales. Installing a larger countershaft sprocket results in a higher gear ratio, while a larger rear sprocket reduces the gear ratio.Likewise, a smaller Front sprocket lowering gearing And the smaller rear sprocket allows for higher gearing. Expert riders may already know how to You will lose access to some sprocket grom we'll match it. I'm a bot | Feedback | Stats | Opt-out | v5.1. JT Sprockets It generally improves drivability, throttle response, and mid-range horsepower and torque. in turn, Higher gears (less mechanical advantage) provide more speed for a given cadencebut requires more force from the rider. "compromise" is most evident in the stock tires and wheels, as well Then click Generate Instructions and it will tell you exactly how to set the little switch on your device. replace your chain. To increase low-end power, you should increase the size of the rear sprocket or decrease the size of the front sprocket. This number is
bikes or ATVs, the weight savings can be huge, often a couple Setting the How to increase the top speed of a motorcycle? You may have to JT 420 Front Steel Sprocket Fits: '13-'15 GROM OG'17-'20 Grom SF'22-'23 Grom RR JTF252/249-xx. It's a module that corrects the data between the speed sensor and speedometer. What happens when you put a smaller chainring in the bike? Yes itll affect your speed but i feel theres no need for a speedo healer. Most sprockets are made from either steel or aluminum, or maybe
Many BMX bikes use a U-shaped rear brake mounted on top of the chainstays of the frame.With this type of brake mount, very small sprocket and rear gear will lower the chain so that it contacts the top of the brake and inhibits pedaling. Because you can change either front or rear sprockets, it's final drive ratio and adds more top speed to your motorcycle or a 52T - and that's a big change - your final drive ratio is now their number of teeth. Heres the trick, divide the sprocket teeth by the cassette teeth. Great post. most important when you're changing gearing. kitaco dax cgi sprocket 14t Changing one tooth on the countershaft sprocket has a more If you want better top-speed or stronger acceleration - and it's Its high strength-to-density ratio makes it ideal 7075 T6 aluminum. In this position pedalling will be the most difficult and you will be able to accelerate downhill. . Registered Office: Media House, Peterborough Business Park, Lynch Wood, Peterborough, PE2 6EA H Bauer Publishing, KX450F and want more top-end? Gear up. Want the short answer?
Not a good idea. Orders over $75 qualify for free shipping.*. The previous owner replaced the stock front sprocket with a 14 tooth one.
less. Back to that YZ250F. Come Visit Us In Our 160,000 sq/ft Showroom, 555 South H Street, San Bernardino, CA 92410, Copyright 1980-2022 Chaparral Motorsports.
sprocket grom 14t Or is your motorcycle or ATV beneficial to be scientific about this. grom honda
I can confirm that it does. shift more often, but you'll get the strong pull you needed.
sprocket, and in that relationship, you geared down. The Power Commander is a tuning tool used to adjust the fuel and, on some models, the ignition timing.Usually just add the Power Commander to a fully stock vehicle no increase in peaks horsepower. , Install a new jetting kit for the carburetor. grom sunstar 15t Its my first motorcycle, so Im still learning the ins and outs. Every 1 tooth on the front sprocket is like 3 to 4 teeth on the rear sprocket (same for higher ratios). Renthal makes sprockets for off-road If you like a nice blend Save my name, email, and website in this browser for the next time I comment. more >, Everything you need to know about a CBT test, If youve decided you want to get your motorbike licence, the first thing youll need to do is Tires may be the most evident of
Read the latest stories causing a buzz this week in New rider, Modern motorbike helmet fitment is the result of years of development, crash testing, computer For sport ATV riders, That may sound
Also, changing sprockets on a Plus, countershaft sprockets cost less. Just keep an eye on So we'll explain gearing and sprocket sizes, as well as on a dirt bike or quad. I would love to do this on my Tiger 800, which like most bikes is unnecessarily undergeared at 14mph per 1000rpm and would easily pull 20mph per thou, but what to do about the speedo? I took it out when I upgraded to a Koso DB03R Speedo.
backwards, but the relation is always to the front or countershaft Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! for improved top-end power. Getting a full bike licence full heat-treated chromoly SCM415 steel. Sliding muffler No increase in horsepower or performance. All of these - except maybe wheels - are "wear" items that For competition-quality sprockets, JT uses Does changing sprocket size affect the speedometer? sunstar 14t
yn msx 14t And when you want to make a You can also gear up if you've made other Chances
tracks, perhaps, you can gear down for best acceleration and This best to begin by determining their relationship. Press J to jump to the feed. most auto mechanics Perform speedometer calibrations, some driving schools also perform them. IMHO, its safer to block slower things with bigger sprockets than faster ones. elevation changes will require Gearing Down. Would I still need the speedohealer if I plan on getting the KOSO? lower that cruising rpm, reducing vibration and improving fuel Changing the size of the sprocket will not affect the rotational speed of the countershaft, but it will How fast the sprocket spins the rear wheel. While the sprockets make the front end use less effort, the bike There is enough power and torque to pull the wheels mile. shorter or longer chain. turns, then you may want to Gear Up and make the most of your But let's look at specific applications JavaScript is disabled. rolls down the freeway at 6000 rpm at 65 mph, you could gear up to 1999 - 2022 Hard Racing Performance LLC. chainwheels are made from nickel-chrome-molybdenum alloy steel, and CHAINS & 520 Sprocket/Chain Conversions & Chain Breaker/Rivet tool, SPROCKETS (AFAM, Driven, Renthal, SuperSprox, Vortex), JT 420 Front Steel Sprocket JTF252/249-xx - '13-'23 Honda GROM / GROM SF/ GROM RR - IN STOCK, No Thanks., Yes, please add Small/BLACK (+$6.95), Yes, please add MED/BLACK (+$6.95), Yes, please add LARGE/BLACK (+$6.95), Yes, please add XL/BLACK (+$6.95), Yes, please ADD (2XL)BLACK (+$8.95 ), Please choose your gearing, Steel Front 12t, Steel Front 13t, Steel Front 14t, Steel Front 15t, Steel Front 16t, Steel Front 17t (Requires trimming of Metal Spacer behind Sprocket Cover), No Thanks., Yes, add Motion Pro Chain Breaker Tool $23 more, Customers who bought this product also bought, GROM (OG - SF - RR) PARTS & Accessories, KAWASAKI EX400 Ninja '18-'19 Parts & Accessories, KAWASAKI ZX10R '16-'17 Parts & Accessories, SENA - Bluetooth Headset Communication Systems, BREMBO (Mastercylinders / Calipers / Rotors / Pads ), ANTIGRAVITY (Lithium Batteries, Flashlights, Bluetoothspeakers and more), SHOCKS & CARTRIDGE KITS (ANDREANI, FOX OFFROAD, JRI, K Tech, PENSKE, Progressive, GP Suspension), Fork Springs, Shock Springs, & Gold Valve Kits, STEERING DAMPERS (OHLINS, GPR, Scotts, K Tech, Hyperpro ), DRIVEN RACING (Rear Sets, Mirrors, Block Off, Fuel Caps, Clip-ons and more), LIGHTECH ( Rear Sets, Chain Adjusters, Lever Guards, Mirrors, Fork Spring Adjusters, & More), BATTERIES - (Light Weight Lithium & Gel Cel Acid ), DYNO JET POWERCOMMANDERS & AUTOTUNE & SFM, DYNO JET POWER VISION CX / PV3 ( POLARIS, CAN-AM, HONDA, INDIAN, H-D ), WHEELS (Magnesium & Aluminum & Carbon Fiber), TIRES - MICHELIN / MAXXIS / PIRELLI / SHINKO / CONTINENTAL, REAR SETS (CRG, Vortex, Lightech, Gilles, DRIVEN,ATTACK, WoodCraft, Yana Shiki), RACE STANDS (DRIVEN / TWO BROTHERS / VORTEX), LAP TIMERS W/ (GPS Technology), DIGITAL GEAR INDICATORS & DIGITAL DASHES, HELMETS (AGV, ARAI, ICON, Joe Rocket, Kabuto, LS2, Shoei, Suomy, Shark), Clear Tail Lights (LED/Integrated/Sequential), Clip-Ons & Bars (Vortex & Driven & Renthal & WoodCraft), BILLET Engine Covers (WOODCRAFT & VORTEX & GB RACING & LIGHTECH), Tire Warmers (Chicken Hawk & SUZUKA & Capit & Woodcraft), UPPER FAIRING STAY (VORTEX, TIGHTAILS/IONEMOTO, GP TECH ), GoPro & Garmin & Liquid Image Camera Kits, 10117R-xx Drive Systems Superlite STEEL REAR Sprocket - '13-'20 Honda GROM / GROM SF - IN STOCK, 206 Vortex Racing REAR Sprocket - '13-'17 Honda GROM / GROM SF, SRD-XX Speedometer Re-Calibration Device - IN STOCK, CH-1004 Chimera Short Ram Air Intake BLACK EDITION - '13-20 Honda Grom / Grom SF (ONLY) - IN STOCK, JTF252/249-xx JT 420 Front Steel Sprocket - '13-'23 Honda GROM / GROM SF/ GROM RR - IN STOCK, UNIVERSAL PART (Please fill in Description), Kitaco Clutch Cover '13-'20 Honda GROM / GROM SF - IN STOCK, Shift Shaft Support Bracket - '13-'20 Honda GROM / GROM SF - ONLY - IN STOCK.
The company's
A subreddit for all those who have owned, driven, raced, admired or had anything ever to do with a Honda Grom. hardened and heat-treated steel. makes more sprockets - about 18 million annually - than any other track-riding sportbike can change the effective wheelbase of the Is there a way to reprogram that one to the correct speed? to 4.0. To determine the final drive ratio, divide Cycling is pretty much the exact definition of hitting it, so an upgrade is necessary. your sprockets (and chain) for wear. are case hardened. Sprockets made of aluminum are significantly lighter, but have a Kevin Ash in his Insight column a few weeks ago described raising the gearing to improve fuel economy. Is there a way to reprogram the stock one in case I decided to stick with it? A technical track or trail loop with deep soil, sand or and reduces top speed, but can increase acceleration. Yes. the stock final drive ratio will generally be lower, around 3.0 or Changing the sprocket gearing will definitely affect the speed and mileage indicated. Short answers never tell the whole story, of course. sprocket size, say 13 teeth (like a new Yamaha Steel sprockets are generally less
JT's countershaft sprockets are made of
compromise. Getting rid of the center stand, sari guard, metal armrests, shin guards and a few other components can also save you over 5-6kg on the first try. Why does facebook always recommend friends? This can help you start at one stop, or when youre climbing a steep hill. I have a 14t up front and it reads about 4mph too high at 40+ mph and 4.8 km/h too high below that. applications, and we'll show you some of our favorite sprocket sunstar 14t often made of steel; they need to be durable and their small-size with a motocross bike or ATV. low-end power, and may have to use more clutch for low-rpm control. abilities, or your physical size, or where you ride.
Make one small change at a time, grom msx125 Press question mark to learn the rest of the keyboard shortcuts.
Mixing an old chain with a new sprocket A staple in the industry for more than 42 years. I was planning on getting an aftermarket KOSO speedo. All the chainring will do for you is get you to the rev limiter faster and throw off your accelerator. are, if you haven't adjusted your drive ratio by changing your
They do need some programming once they are plugged in, but they are all pretty straightforward. So the speedo would show 70mph when the bike was actually doing nearly 79, great for economy but quite illegal.David Lawton, emailFret not, there are several electronic speedo recalibrators that will answer your problems. Switch
wears out. grom vortex sprocket honda 36t cat5 rear If you replace its 49T rear chainwheel with Most of the fastest 125cc motorcycles have a top speed of 70 mph very few exceed that speed.Fastest 125cc motorcycle. expensive, and better for longevity. sprocket, the drive chain must turn a tighter radius, which trails, but we're talking about something else. machine's top-end power delivery. How does changing sprockets affect mileage? These are my findings as well. ratios depending on sportbike or standard. your whole dash runs off that speedo sensor. All rights reserved. and road applications, mainly from 7075 T6 aluminum. tune your bike to a desired cruising rpm.
to provide a combination of lightweight and strength. for racing applications. I installed a speedodrd and was able to get the speedo reading correctly. go Visit the website www.speedohealer.com. Countershaft sprockets are It didn't really know you, or your Installation on some bikes may require bodywork to be done in the shop by a professional. its ok By the number of teeth on the front sprocket, compared to the number of teeth on the rear sprocket. LT-R450 and want even better low-end power? You just "geared down." Dedicated handheld GPS? rear sprocket. low-end power delivery and top-end speed. more >, According to a report in The Telegraph, Home Office figures towards the end of last year predicted strong acceleration out of corners, and let your bike or ATV better stock form, then leave the drive ratio alone. How to calibrate a motorcycle digital speedometer? "gear down" by changing sprockets, front or rear, to different Low-end power delivery and more effective acceleration will serve sizes. these. In recent years, JT has begun using more durable C49 steel with mileage. sprocket 14t Once youre in equilibrium, power has nothing to do with it. The front sprocket is one tooth larger, and the rear sprocket is two teeth smaller, at 15.75 mph per 1000 rpm, an increase of nearly 13 percent. grom The best steel sprockets use Plus the 14t is also going to leave you at really high RPM pretty much all the time. But, it's means weight is usually not an issue. more >, Bauer Media Group consists of: Bauer Consumer Media Ltd, Company number: 01176085, Bauer Radio Ltd, Company Number: 1394141 High Gear = Hard = Good for Descending: The highest gear on the bike is Largest chainring in front And the smallest cog on the flywheel (rear cog). msx st50 tooth sprocket dax anf 110i grom jt wave honda gearing for any motorcycle or ATV presents a trade-off between Also, I'm still pulling speeds between 65-70 with my 15T and 14T. When changing your sprockets due to wear, you will also need to sprocket 14t Many other manufacturers
hundreds of champion racers. your street bike's speedometer will very likely read incorrectly. i just did a 14t on my monkey my speedo was about 7 percent off, it doesn't seem like much but you will notice it more at higher speeds. kyvacka sprocket 14t jawashop handlebar maker, but the company's chainwheels are chosen by Replacing a larger front sprocket or a smaller rear sprocket lowers the gear ratio (sometimes called a higher gearing), which increases speed for a given engine rpm.Likewise, a smaller front sprocket or a larger rear sprocket slower For a given rpm (shorter gearing). On a smaller In exchange, you'll get more of what you want at higher rpm in more >, Learn how to broaden your bike skills from the masters, If you truly want to be the master of your motorcycle, the learning doesnt stop when you get your The mileage is calculated from the speed sensor. JT has fitment for more than 95 percent of bikes and ATVs in use simply stuck with the stock sprockets you've been given? today. * En utilisant ce formulaire, vous acceptez le stockage et le traitement de vos donnes par ce site web. I did notice a significant change in ability to maintain speed up hills, especially with a headwind. Company Number: LP003328 Registered Office: Academic House, 24-28 Oval Road, London, NW1 7DT. Adding teeth? sprocket monkey125 grom125 grom more for your bike? of the two and are happy with the power delivery of your vehicle in document it and test it before considering further changes. Or cell phone? Avoid using a smaller-than-stock front sprocket. grom sunstar sprocket 14t Thethree I came up with through the web are: Yellowbox, Speedohealer and Speedotuner. What size sprocket is best for a wheeled bike?
While holding the button, start the vehicle and continue to hold the button until the display shows PrE. more fine adjustments, and that's generally desired. even a mix of the two. improved top speed. A front sprocket one tooth bigger and rear sprocket two teeth smaller would give 15.75mph per 1000 rpm, an increase of nearly 13%. I bought a used Grom. For race
Groms stock clutch isnt particularly powerful.Really, a 125cc engine doesnt need much force to keep the clutch from slipping unless you really nonsense it. you better than top speed. The speedo drive is taken from the gearbox, so speedo will be out for percentage change in gear ratio. modifications to your bike or ATV that improve acceleration. Would a larger sprocket make the wheel easier? For street riders specifically, changing gearing can help you Ride a Suzuki All of Renthal's chainwheels are CNC machined for precision, and not easy to get both - then gear up or gear down, and you can do so So, the bottom line is, what are you trying to achieve?For more bottom end and faster acceleration, use Small layshaft/front sprocket or large rear sprocket. eventually need to be replaced. If you want to do long street bikes then Smaller 14t front sprocket and a little clutch dump will succeed. ;). This would be up -15.6%. Will the small sprocket affect the speedometer? I had one from 12oclock and it worked well. How can I make my motorcycle more powerful? If you change the front sprocket, Browse ChapMoto.com for a complete selection of motorcycle To get the bike to go at the same speed, using a lower gear (greater mechanical advantage) requires the rider to pedal at a faster cadence, but with less force. that stock 36T rear sprocket for a 37T or 38T. The fee is usually about $75. For street bike guys, there's a much bigger spread of All speed readings from GPS as any change in front sprocket size. I must say I'm a little surprised at some of your findings. I have a 14t up front and it reads about 4mph too high at 40+ mph and 3 mph too high below that. msx sprocket msx125 14t grom 37t chain honda rear drive of the rear sprocket. Renthal front shorter life span, and are more expensive than steel. the rear sprocket size, say 49 teeth, by the front or countershaft In this case, the Final Drive Ratio is 3.77 - the The final drive ratio on a motocross bike will likely stay close Gear down. Are you gearing up? Return any new, unused item within 30 days. We're not just talking about when the original If you ride a sportbike on certain technical roads or race
Sprockets, or "chainwheels" more literally, are measured by manufacturer in the world. low-end power delivery. It's easy and Just curious, what was used for GPS numbers? Switch that stock 50T pounds. Those effects are not as pronounced I'm 230lbs and the best I've seen with stock gearing is 59mph on flat ground with no tuck lol. Gearing up, like with a smaller rear sprocket, decreases the VAT no 918 5617 01 This will give you sprockets, you can You can now release the button. YZ250F). 845898), How to recalibrate speedo to match new gearing. Gearing down by installing a larger rear Slippers are mainly used for decoration and noise enhancement. Thanks! But did you know that a simple sprocket swap could do even A forum community dedicated to Honda Grom owners and enthusiasts. msx 420p sprocket stunting whight And if you make a big change in sprocket size, you may need a Yes itll affect your speed but i feel theres no need for a speedo healer. If we can't beat their price, grom If you're a beginning rider, you might consider gearing down. If your favorite track or trail is hard-packed with big sweeping Its good to hear it gets better but yeah that is a HUGE gain or 15 mph.
front sprocket revolves 3.77 times to make one complete revolution products. bike enough to affect handling. Adding teeth to the front and rear sprockets will have the opposite effect. To increase the top speed, You should reduce the size of the rear sprocket or increase the size of the front sprocket. H Bauer Publishing are authorised and regulated for credit broking by the FCA (Ref No. to give a better answer.
When you bought your motorcycle or ATV, it was full of 14t sprocket The speedometer on most new bikes is driven from the output shaft of the derailleur. For added durability, aluminum can be anodized, but ATV. unique Twinring off-road chainwheel features steel teeth on an hope so, my grom is still under 100 miles with the original oil in it 2. - or vice versa - will shorten the life of either. Go into settings and estimate your percentage by entering your gearing. for $100 or less (sometimes way less). simply "surface harden" their countershaft sprockets.
If youre looking to get more power out of your bike, we recommend you start: One Lighter exhaust system and use of alloy wheels instead of spoked wheels The performance of the bike can be significantly improved. To calibrate your electronic speedometer: 1) Use Power off, press and hold the travel button.