Hot Cams Racing Camshaft Single Cam Stage 3 Honda Sportrax 450 Trx450Er The Hot Cams Stage 3 Racing Camshaft is designed for serious riders looking to enhance the top-end power and mid-range performance of their bikes beyond Stage 1 capabilities. Easy to install without the need for complicated modifications or a core charge, it's ready to elevate your riding experience right out of the box. Compatible with most stock valve springs and rockers, its adjustable cam sprockets offer tuning precision for any ride. Experience a notable improvement in throttle response and fuel efficiency with this superior camshaft option. Features: Improved Top End over Stage 2 Excellent Mid-range gain over Stage 2 High performance racing camshaft No core required Designed to be use with stock valve springs and rockers on most applications (unless noted) Adjustable cam sprockets supplied (model specific) Improved throttle response technology Improved intake charge and combustion cycle over stock Specifications: Exhaust Cam Lobe Center: 104 Exhaust Cam Lobe Duration at 1mm: 265 Exhaust Cam Lobe Lift: 9.100mm Exhaust Cam Valve Lash: 0.280mm Intake Cam Lobe Center: 116.500 Intake Cam Lobe Lift: 10.400mm Intake Cam Valve Lash: 0.150mm Intake Lobe Duration at 1mm: 254 Shim Kit: Hcshim02