THIS ROCKER ARM WILL WORK FOR INTAKE OR EXHAUST SIDE AND WILL WORK ON K0 THRU 82 CT70 MODELS, ALL C70'S, AND ALL Z50'S. R2021 @ ROCKER_ARM ASSY_SET 2EA_ARMS 2EA_ADJ_SCREWS 2EA_ADJ_NUTS ATC70_CT70 XR70_CRF70 LIFAN_70_TO_150 (305T) 305T @ *OEM HONDA TAPPET ADJUSTING SCREW (SOLD_EACH) 7/18A (270H) 270H @ *OEM TAPPET ADJUSTING NUT (SOLD_EACH) SEE FITMENTS LIST 90206-001-000 1/20A (R2201) R2201