Convert your 1973-1975 Honda ST90 to a modern pit bike engine with our Honda ST90 pit bike engine adapter kit. Designed for easy bolt-in installation—no welding required. 2mm thick adapter brackets ensure durability, Tested adapter brackets on a 190cc 5 speed swapped Honda ST90.
Kit Includes:
- Two laser cut engine adapter brackets
- All necessary hardware and shims
- 14 guage steel
Notes: Slight clearancing may be required on the adapters for certain engines/transmission configurations. Not for use with TOP MOUNTED electric start engines Pit bike style exhaust/foot pegs required.
