Wsm 50-521-05PK Cast Series Piston Kit - 0.50mm Oversize body-cabs-accessories Designed to provide outstanding grip

Designed to provide outstanding grip on wet clutches to prevent slippage

Available in two head sizes

Spring kits allow for higher rpm engagement than stock springs

1985 Yamaha FJ1100

CAD/CAM designed and ground surfaced to insure exceptional fl atness

Wsm 50-521-05PK Cast Series Piston Kit - 0.50mm Oversize body-cabs-accessories Designed to provide outstanding gripNew light weight design incorporates shorter piston skirts with an PTFE coating at critical wear points for quicker revs and less heat. Improved intake skirt with larger inlet ports for increased acceleration and overall performance. Vehicle Fitment: 1987 2006 Yamaha YFZ350 Banshee