Honda GXH50 49.3 cc 1.0 up to 2.10 max hp, Four Cycle, Rear mount kit. Your pick of any of the drive rollers listed below. This kit come with the Dual engaging system. The engine shaft has been machined and includes the 3 shoe dry metal clutch and the CNC machined adaptor. This is a complete kit.
The standard drive roller is the 1.50". If you have lots of hills go with the 1-3/8". If 250 lbs and hills pick the 1-1/4". The larger the drive roller the faster your top speed, but less hill climbing power. Be sure and check out the Gear & Chain Drive kits if you need a engine this powerful.