An essential component for building a high-performance, high-revving CRF motor
Required when using the BBR Performance camshaft for the CRF150F/230F
Built from the highest quality chrome-silicon wire
Fully shot-peened and preset for long life
These valve springs only fit the '03-'05 CRF150F or the '03-'17 CRF230F. The '06-'17 CRF150F is a completely different motor and will not accept these springs.
