Pocket bike Reduction Gearbox

Reduction gearbox unit for the 49cc A115 2 stroke engines

- If you are using wheels bigger than 6.5 inch ( mini dirt bikes & mini gokarts )
- If you require more low end torque ( heavier riders )
- This uses the T8F pitch drive chain (11mm wide )
- Ration: 3.3.1
- Stronger double gear chain version