Fits CRF/XR50, CRF/XR70, CRF/XR80, and CRF/XR100 to eliminate the 9800 rpm rev limiter and provides a hotter advance curve.
This Rev Box also fits the Honda Z50R with electronic ignition (1988-1999). It will not work with any ignition that uses points.
- Allows a higher rpm limit to fully take advantage of engine modifications
- Eliminates 9800 rpm rev limiter
- Ignition advance curve is optimized to work with engine modifications
- Direct replacement for the OEM CDI ignition box
- These items are designed exclusively for closed course competition use ONLY. Use on public lands or highways in the state of California is illegal.