WSM Piston Kit 50-251-07K Engine Degree Wheel To get an accurate Air:Fuel

To get an accurate Air:Fuel (A/F) ratio when dynoing the bike

Breathable textile lining with anti-sliding microfiber suede on the heel

Includes formed rubber valve cover gaskets

Uses a single exhaust port with a 3" core Unbelievably deep sound and increased performance over the stock system Tri-oval-shaped muffler rear seamlessly transforms into 4" round front 5" wide

Outer seam palm construction for enhanced levels of rider comfort

WSM Piston Kit 50-251-07K Engine Degree Wheel To get an accurate Air:FuelQuality and construction that meet or exceed OEM Feature improved E clip design Kits contain piston, rings, pin and clips Rings available separately