11/2" and 15/8" kits include front pulley, belt, clutch hub, clutch basket and Kevlar® clutch set (consists of two half plates, four full plates and five steel drive plates)Direct bolt-in applications3" electric start kits include front pulley, belt, clutch hub and clutch basket and Kevlar® clutch set (consists of two half plates, four full plates and five steel drive plates), 6061 T-6 billet motor plate, outside guard and polished pulley coverAll systems come with the Quiet Clutch and ball-bearing lockup design pressure plateLockup design applies extra pressure to the clutch plates for positive engagement with no clutch slippageNo increase in lever pull effortRear pulley has a 40mm, double-row bearing with an inner stress-proof steel clutch hub to support the clutchReplacement components available separately; see page XXXMade in the U.S.A.NOTE: 3" systems are not designed for use with floorboards.NOTE: Not for use with offset primaries.