Gy6 stock gear ratio. To calculate gear ratio percen...

Gy6 stock gear ratio. To calculate gear ratio percentage change in this example take (stock 40 / 13) - (36 / 16) = 0. Is it possible to go to 49t with a 17teeth gear on the inside. Here is where you will find all GY6 Parts, Chinese Scooter, Honda Ruckus, and many other Scooter Parts and Accessories. Compare to stock GY6 125/150cc+ transmission gear ratio set is 13x40 this upgear set is 17x36 = 2. We update our site daily with various new inventories and specials. 076:1 THIS MEANS THE STOCK GEAR 13-TEETH COUNTER SHAFT HAS TO TURN 3. I'm currently getting ~55mph top speed, and I'm trying to figure out what I should upgrade first; the carb, the roller weights, or the cvt/transmission, to get a higher top speed. The GY6 engine design is a four-stroke single-cylinder in a near-horizontal orientation that is used on a number of small motorcycles or scooters made in Taiwan, China, and other southeast Asian countries. You swap out the new small splines gear (14t - 17t) with the stock one. This engine was at first delivered in 50 cc (3. Unlock the full potential of your scooter with our Performance-Driven Final Drive Gear Set. Hidden engine problems and reliability issues most buyers discover too late. Overall it will take less counter shaft gear turn for the rear wheel to spin compared to the stock gear ratio of 3. Jan 31, 2025 · The GY6 engine is a versatile and popular choice for scooters and motorcycles. 41-3. The GY6 is commonly used to power various kinds of small vehicles, including Buggies, ATVs and Scooters. NCY 15*38 upgear kit for 125/150cc GY6 engines lets you get the most out of your big bore kit, with increased top speed and a more usable rev range. Since the GY6 125/150cc transmission stock gear teeth are 13*40 which = gear ratio 3. 076:1 this means the stock gear 13-te SO i have 50cc GY6 it's called a Bronc Rally had it for a year and wanted to spice it up a little bit because as it stand depending on the weather i can wrap the speedo to 50 so i only need a little boost. WHICH WILL PROVIDE HIGHER TOP-END SPEED WITHOUT LOSING POWER ON ACCELERATION. 676, then take 0. In this guide, we will explore a series of performance upgrades that can significantly enhance the functionality and efficiency of your GY6 engine. If it positive percentage it's called an up gear, if it negative percentage it's called a down gear. It comes stock with a pd24j carb, and 13 gram roller weights. Which will provide higher top-end speed without losing power on acceleration. PULLEY (18x14) SLIDING ROLLER WEIGHTS FOR 150cc - 232cc GY6 MOTORS. 150cc GY6 Final Drive Ratio Pit/Pocket Bikes & Scooters To calculate gear ratio percentage change in this example take (stock 40 / 13) - (NCY 36 / 15) = 0. 1), 125 cc (7. I noticed that there are several stock gear ratios for 139qmb, some take 11 rotarions of the clutch bell for 1 rotation of the wheel, I even came across with engines that had 15:1(10" wheel), while It covers roller weights, variator, clutch springs, carb jetting, etc and is specifically for 50cc 4 Stroke GY6 QMB139 engines such as on the Agility50, but some of it is useful for all 50cc restricted scooters. Part Number NCY GEAR SET 16*37 HAS A 25% INCREASE UP GEAR RATIO OVER THE STOCK GEAR SET (13*40 TEETH). To calculate gear ratio percentage change in this example take (stock 40 / 13) - (NCY 38 / 15) = 0. Description: Gear Set 14*36 has a 16% increase up gear ratio over the stock gear set (13*40 teeth). That’s what I did. Join Our Mailing List for special offers! Your first blog post! The Honda GY6 Engine is a small four-stroke internal combustion engine developed by the Honda Motor Company. This makes it an excellent option for adult scooters, especially for newbies. 2 cu in) engine sizes and was found in the Honda Elite and Spacey line of motor bicycles. 676 / (stock 40 /13) = 0. Since the GY6 125/150cc transmission stock gear teeth are 13*40 which = gear ratio 3. 076:1. This lightweight ProBld gear-up kit improves final drive ratio while reducing rotating mass — meaning faster spool-up and a noticeable bump in speed ️ 20% lighter rotating mass for snappier anyone played around with final drive ratios on the GY6 style scoots? I’m looking for another 5mph Seems there are multiple options. The GY6 engine has a verifiable swing arm with modified CVT transmission that is belt driven. 543 / (stock 40 /13) = 0. WITHOUT LOSING POWER ON ACCELERATION. 826 / (stock 40 /13) = 0. 826, then take 0. . 17:1. These are separate gears btw but they mesh together. *stock gears for most GY6 150cc Designed and intended to be installed in GY6 150cc CVT Transmissions only! Description: Gear Set 14*36 has a 16% increase up gear ratio over the stock gear set (13*40 teeth). GET THE MOST OUT OF YOUR BIG BORE KIT, WITH INCREASED TOP SPEED AND A MORE USABLE REV RANGE PERFORMANCE. It’s widely used in 50cc to 150cc models and is a favorite for performance upgrades. You just need enough speed to keep cars off your tail and just enough acceleration not to look like you're riding with a load of bricks. 88:1 Final Drive Gear Ratio (usually 3. Stock it was a 52t 14teeth gear. 076 full-turns to drive 1 full-turn of its 40-teeth final drive gear thus turns its final drive axle which the rear wheel spin freely on. 543, then take 0. OVER THE STOCK GEAR SET (13*40 TEETH). NCY GEAR SET 16*37 HAS A 25% INCREASE UP GEAR RATIO. The GY6 engine is also notable for its continuously variable transmission (CVT). 076:1 this means the stock gear 13-te Overall it will take less counter shaft gear turn for the rear wheel to spin compared to the stock gear ratio of 3. Description: Gear Set 15*37 has a 20% increase up gear ratio over the stock gear set (13*40 teeth). 076 FULL-TURNS TO DRIVE 1 FULL-TURN OF ITS 40-TEETH FINAL DRIVE GEAR THUS TURNS ITS FINAL DRIVE AXLE WHICH THE REAR WHEEL SPIN FREELY ON. When you purchase a gear up kit from ncy it comes with a larger and a small splined gear. What should I upgrade first on a stock 170cc gy6? I have a stock 170cc gy6 scooter, with the engine 161qmk. 176 or 18% increase up gear NCY Gear Set 15*38 over the stock. WHICH WILL PROVIDE HIGHER TOP-END SPEED. If you're planning on using your GY6 powered scooter for urban trekking or get around town, you really don't need excessive top speed or ludicrous acceleration. Please Note: Does Require Pressing The Gears Off the Shaft 2. Instead, a system of belts and pulleys is utilized to adjust the engine-to-wheels ratio. May 24, 2025 · A common question arises: Are All GY6 Engines The Same? This article delves into the nuances of GY6 engines, exploring their variations and what sets them apart. This transmission type removes the need for gears, making acceleration smooth and efficient. Taida Gear Set 17*36 is longer by 31% from the stock (13/40 teeth) which will provide higher top end speed without losing power on acceleration. 22 or 22% increase up gear NCY Gear Set 15*36 over the stock. 076:1 this means the stock gear 13-teeth counter shaft has to turn 3. Now you know. Any who i see they are selling CDIs on ebay supposedly the stock one has a rev The GY6 engine design is a four-stroke single-cylinder in a near-horizontal orientation that is used on a number of small motorcycles or scooters made in Taiwan, China, and other southeast Asian countries. Aug 22, 2025 · Explore the differences among GY6 engines, including specifications, manufacturing quality, and compatibility issues. This set provides an 18% increase in up gear ratio over a stock 13*40 gear set. SINCE THE GY6 125/150CC TRANSMISSION STOCK GEAR TEETH ARE 13*40 WHICH = GEAR RATIO 3. 71 stock) Average Top Speed Gain on Flat Ground is 7 to 10 mph (Depends on other Modifications on your Bike) These Are Great Addition for The 139QMB 4 Stroke 50cc Chinese Scooter and ATV Engines with Standard or Big Bore Kit. 6 cu in), and 150 cc (9. 268 or 27% increase up gear Gear Set 16*36 over the stock. Apr 21, 2025 · The GY6 is a popular four-stroke scooter engine known for its reliability and ease of modification. WHAT IS GY6 ENGINE? Specifically, we’ll delve into the GY6 engine, which is a small two/four-stroke internal combustion engine that’s often used in various small vehicles, such as scooters, ATVs, go-karts, and even small cars. COMPARE TO STOCK GY6 125/150cc+ TRANSMISSION GEAR RATIO SET IS 13X40 THIS UPGEAR SET IS 17X36 = 2. Designed for all common GY6 scooters, this gear set allows you to make the most out of your upgrades, particularly when fitted with a big bore kit. 4vzw, kvverf, 058df, w3owg, ymnzd, rhmx, sfr5k4, urhal, ohzb4l, ihlmya,