AHP 4 Speed Transmission
Z50 CRF50 XR50 & Pit bikes

Note: 
ALL TECH SUPPORT and INSTRUCTION email ahpminis@gmail.com

AHP 4 speed 1 down 3 up transmission, hardened gears and shift forks. This transmission kit is made for those wanting to upgrade their stock Honda motors from a 3 speed to a 4 speed. AHP's transmission kit will work with both semi-auto and manual clutches and will fit into a OEM Honda bottom end. Will also fit import motors.

Set comes complete with main shaft, counter shaft, shift drum,shift forks, and 15T front sprocket.
Primary reduction ratio: 3.722
Gear Ratio:

1 - 3.182
2 - 1.706
3 - 1.238
4 - 0.917

All Support on this part will go thru the manufacturer directly
mark@ahpminis.com

Note: 
When using with 6V points ignition CT and Z50 engines you may need 
OEM HONDA Kickstart shaft gear 28211-GEL-A80
and
OEM HONDA Kickstart shaft 28251-GEL-A80