High Performance Camshaft - CRF125 CJR Performance SS - NEWThe CJR Performance SS camshaft is the perfect camshaft to drastically improve throttle response and boost low-mid range power while still offering great top end gains over the stock camshaft.  Features: Most optimal for stock bore 125cc use, this profile has tested to do great on big bore applications as well. Maximum RPM on OEM Valve Springs - 9,000rpm Valve Lash - .005/.006 NOTE: Due to the aggressive profile of this camshaft it is highly recommend to pair with our High RPM Valve Spring Kit to take advantage of additional overrev. Without the use of stiffer valve springs, it is recommended to reduce the rev limit to avoid valve float.