This is about wheel drive belts, chains and sprockets on dual belt or belt & chain models. The bigger the shaft sprocket, the more the torque or low end pulling power, while smaller provides more top speed. we offer 12 & 13 toothed hardened shaft sprockets. Wheel sprocket is the same principal. small=speed & large=torque/pull. Cobra & The Rock & Nuke are 20 tooth shaft/belt gear to 60 toothed wheel belt gear=ratio 1:3 which provides good speed on 9 inch tire. most other models are: 1:3.16 or 1:3.95 gear ratio which provides good torque. big wheel models are 1:5.1 select your factory or custom gear ratio by selecting 1 of 2 available #35 Chain Drive shaft/hub mount sprockets and many different wheel plate style sprockets. shaft sprockets have set screw, but must be welded to shaft after determining correct position & tracking. wheel sprockets are bolt on. call scooterman @ 256.468.2761 u.s.a. english for assistance in ordering custom chain drive.

#35 Chain Drive Kit 12:45 #35 ansi roller chain kit for: The Raser FX, SCOOTR, TIGER, R3, R5 AND OTHER MODELS using 10 inch rear tire. Kit includes 3 feet of #35 ansi chain & master link, a 12 tooth #35 shaft sprocket and a 45 tooth #35 wheel sprocket. this is a gear ratio of 1:3.75

#35 Sprocket For Wheel 45 tooth p/n 2299k319 45 Tooth Hardened Wheel sprocket. Recommended for use with 12 tooth shaft sprocket to keep close to four to one factory gear ratio on most models excluding big wheel models and also The Rock/Cobra or Nuke/Lowrider/STANDR, BUT This sprocket will increase TORQUE on models using 3:1 OR 3.16:1 gear ratios, such as THS OR ROCK/COBRA with 9 inch rear tire. This sprocket is recommended with 3.0-4/280x65/10 inch rear tires For even MORE torque, use a 13 tooth shaft sprocket. "Big wheel" models use 60 tooth wheel sprockets.

#35 Sprocket For Wheel 48 tooth

260 X 85 Inner Tube

3.0-4 Inner Tube

3.0-4 Tire Factory R3 Tiger TIRE

3.0-4.0 Tire By Kenda Dual Terrain 154-95 Cobra gas scooter factory front tire. Great for all of our gas scooters as front tire providing smoothe handling and steering except will not fit Nuke, or Lowrider or Standr due to frame clearance.

3.0-4.0Tire By Kenda Street Gripper P/n 154-104

3.0-4.0 Tire By Kenda Super Smoothe street slick Xtr 154-89

4in Alloy front Wheel For Cobra Nuke Rock and many others. Color of inset is Black. Also see part listing of front or rear wheel to see image of kit contents. NOTE: Neither valve cap or tubes, tires or brakes are NOT included, but ALL else is!

585-5M-15 Belt for use with 24 tooth clutch sprockets Some Chuweng Raser or xcooter thunder THS Big Wheel scooters used this belt from factory with a 24 tooth trans sprocket. Reccomend 585-5m-15 belt if you are using a 24 tooth engine/trans 5m belt sprocket. The most common belt used for the left side or clutch belt with a 20 tooth engine sprocket and a 60 tooth shaft sprocket is a 575-5m-15. replacement of dry rotted twisted mis-shapen motor mounts can cause belt tension & alignment issues and incorrect length choice or misdiagnosis. your motor can be adjusted forward and backwards slightly to help with belt tension. we recommend replacing the motor mounts if the motor mounts are dry rotted or they stay twisted with the transmission belt removed.