S&S Cycle 90-1293 Super Stock 79cc Cylinder Head Kit - .640in. Lift Springs - Winkle Black drive air management outside and inside

air management outside and inside of the helmet

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

2003-2005 Honda NPS50 Ruckus

2021-2023 Arctic Cat M 8000 Mountain Cat Alpha One ATAC 165

S&S Cycle 90-1293 Super Stock 79cc Cylinder Head Kit - .640in. Lift Springs - Winkle Black drive air management outside and insideCompression 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