1139 2 Camshaft Stage 2 Honda CRF250R 2004 2009

Features: Computer Numerical Control (CNC) from 8620 billet steel and case harden. Designed and dyno proven in the USA. Engineered by using valvetrain software. Adds a 5%-10% power gain. Select cams feature Hot Cams Improved Throttle Design (I.T.R.) technology; these cams improve throttle response throughout the entire rpm range while providing excellent power gains through the mid-range and top-end. Designed for mid to top end gains.. Engineered to be drop in cams that use stock valve springs (unless otherwise noted).. Top-end power with great over-rev. Uses stock auto-decompression mechanism. For single cam motor. Uses stock valve springs. Intake Valve Lash: 0.120 mm. Exhaust Valve Lash: 0.280 mm..