S&S Cycle 90-1293 Super Stock 79cc Cylinder Head Kit - .640in. Lift Springs - Winkle Black drive Calf Rideknit stretch paneling perfectly

Calf Rideknit stretch paneling perfectly adapts to different calf shapes and muscle movements

25W halogen bulbs

results in 9:1 compression ration (OEM compression ratio is 11

washers and nuts

Internal Race spec GP-R armor is soft and delivers extended coverage for additional protection in key zones

S&S Cycle 90-1293 Super Stock 79cc Cylinder Head Kit - .640in. Lift Springs - Winkle Black drive Calf Rideknit stretch paneling perfectlyCompression release machining Must use S&S rocker boxes (PART #90 4110) if S&S compression releases are used. High port flow gives great performance now, and more later when additional upgrades are done. Heads are fully assembled with springs and valves, and are available in silver or black powder coat finish to match OEM components. Compression ratios vary depending on cylinder heads chosen, pistons used and engine displacement. Heads are machined