Heavy duty dual valve springs increase valve control and decrease the chance of valve float in high-performance CRF/XR100F engines.
- Dual Spring Upgrade
- Includes Retainers
- Fits 1979-Present XR100/CRF100
- Great for Aftermarket Cams & Big Bore Kits
411-HXR-1025
Heavy duty dual valve springs increase valve control and decrease the chance of valve float in high-performance CRF/XR100F engines.