Big Bore Kit with Camshaft - 120cc, BBR CARB XR100 '81 - '25 CRF100 '81 - '25 Complete big bore kit. Bolt it on and ride! Includes a pre-bored, big-finned aluminum cylinder for improved cooling Cylinder, rings, piston pin, & clips BBR exclusive performance camshaft Heavy-duty valve springs Rockers with tappet adjusters Gasket kit Ships in 3-5 business days $329.95
Camshaft, Performance HotCams CARB CRF100 '04 - '13 XR100 '81 - '03 Excellent midrange and top-end increase. Uses stock valve springs and rockers. Ships in 3-5 business days $139.95