1.New Products with High Quality
2.If your Engine is Revving to High and Bike is Going to Slow Then This Gear Set Will Help
3.Fits Most of Chinese Made Scooters and ATV. Such as JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEA...

Buy Now From Amazon

Product Review

1.New Products with High Quality
2.If your Engine is Revving to High and Bike is Going to Slow Then This Gear Set Will Help
3.Fits Most of Chinese Made Scooters and ATV. Such as JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, Dongfang, Kazuma, JCL, BMS

  • Please Note: Does Require Pressing The Gears Off The Shaft
  • 2.88:1 Final Drive Gear Ratio (usually 3.41-3.71 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.

Similar Products

New 39mm Air Filter Gy6 Moped Scooter Atv Dirt Bike Motorcycle 50cc 110cc 125cc 150cc 200ccGlixal ATKS-041 High Performance Racing Variator Kit with 6.5 gram Roller Weights for Chinese Scooter Moped ATV 4-Stroke GY6 50cc 80cc 100cc 139QMB 139QMA Engine Front ClutchGlixal ATMT1-073-1 GY6 49cc 50cc 80cc 100cc 20mm Big Bore CVK Carburetor with Electric Choke for Chinese Scooter Moped ATV Go Kart Quads Buggy 139QMB 1P39QMB Engine CarbsGlixal GY6 49cc 50cc 80cc 100cc CVK Carburetor Carb Main Jet 139QMB 139QMA #78 #80 #85 #87 #88 #90 #92 #94 #96 #98 (10 pcs set)GOOFIT Big Bore Cylinder Rebuild Kit GY6 50cc 139QMB Racing Scooter Parts 64mm ValveV-Belt CVT Variable Drive Belt Standard 669-18-30 fits 49cc 50cc GY6 QMB139 4 Stroke Engines49cc Scooter Carburetor GY6 Four Stroke with Jet UpgradesGlixal ATMT1-096-1 GY6 139QMB 139QMA Scooter Moped ATV Camshaft Seat Holder Rocker Arms Assy GY6 49cc 50cc Engine (For 69mm Valve Length)Ketofa Gy6 50cc 125cc 150cc Scooter Moped Racing Cdi High Performance Ac Fired 6 PinsGlixal ATKS-024 139QMB 157QMJ GY6 50cc 150cc Scooter Moped Performance Turbo Cooling Fan