1B Transmission and INSTALLATION KIT

T Belt drive runs much more quieter than a chain drive!

4G Model 1B T-Belt Drive Transmission with bicycle installation parts kit; 

Everything you need except the engine and bicycle to make a motorized single speed bike.    Engine sold separately:  Customer provides their own donor bicycle. 

If you want to use of your bicycle gearing for multi speed see our 10G 1BMS kit.

  • 20T drive pulley 100T driven pulley with 9T and 10T slide drive sprockets included.
  • 4G 1B Transmission is used on a Huasheng 49cc or 53cc engine with built-in 3 shoe centrifugal clutch.  Engine is sold separately: 
  • Will not work on a straight shaft engine, ie: Honda GHX 50 
  • Must use this transmission with our 10G 1BMS multi-speed shift kit.
  • Starting 2017 all 1B transmissions have 8 mounting holes to enable using 10G 1BMS Multispeed right side drive for a 10 degre downward mount..
  • This kit comes with a clamp to spokes rear sprocket but we high recommend you use a HD axle #2 to enhance reliability and safety.

List of parts included with a 4G 1B kit.

    • Model 1B 20Tx100T T-Belt Transmission  with 9T and 10T drive sprockets;   ( 8 engine mounting holes: )
    • Adjustable engine bracket.  2 cast iron ends with steel top plate.
    • Handlebar twist grip throttle with kill switch
    • 2.5L gas tank plated inside to prevent rusting
    • Brass shut off valve for gas tank
    • Clamp to spokes 48T bike wheel chain sprocket with installation kit;
    • Belt adjustment spanner wrench
    • Complete Wide Pedal kit with conversion kit for big and small  hole.
    • Ball bearing chain idler
    • Instruction manual
    Bicycle and engine shown for illustration only and are NOT included with this kit.  Order HuaSheng engine separately.  
      JIMCO in Raymore MO is an authorized HUASHENG DEALER AND ALSO CARRIES SERVICE Parts. PH. 816 331 4738