S&S CYCLE KIT 96SWINDR BLK 84-99 91-7661 yamaha-wr-450-f--re45--450-2018-esi6209900 0 - small but brutally

0 - small but brutally effective

smart and super strong

Butyl/rubber construction

Racetech's plastic holds the highest standard and is used by professional teams around the world

S&S CYCLE KIT 96SWINDR BLK 84-99 91-7661 yamaha-wr-450-f--re45--450-2018-esi6209900 0 - small but brutallyKit includes standard flywheel assembly, 3. 625" Sidewinder stroker big bore cylinder, 9. 75: 1 compression ratio pistons, rings and gaskets, Flywheel assembly is complete with S&S heavy duty connecting rods and mainshafts, head gaskets, base gaskets, and exhaust gaskets, Makes stock 80" displacement into 96" displacement, Made In the USA, Does not include manifold, pushrods, or pushrod clips., '77 '89 style pinion gear and oil pump drive gears must