Most front sprockets require the use of a retainer with bolts to secure the front sprocket to the ATV. The retainer is used on the Chinese 50cc - 125cc engines.
- 30mm from bolt hole to bolt hole (1.18")
- Comes with 2 bolts
- Fits on 15mm x 17mm countershafts
A few sprockets on smaller ATV's require a C-clip and not this retainer.