Koyo precision crank bearings. Double-lip seals with PTFE contact area tolerates dry start conditions with less crankshaft pin wear.
This Part Fits:
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1985-1986 | Honda | ATC250R | Base |
| 1986-1989 | Honda | TRX250R | Base |