Wiseco Bottom End Rebuild Kit for 2003-13 Yamaha WR250F - 53.60mm - WPC141 2007 Yamaha YZ85 Piston Size: 103

Piston Size: 103

Fitments 1987 Honda XL250R

2003 Kawasaki VN1500E Vulcan Classic

2007 Kawasaki KX100

(2) 22x56x16 ball bearings

Wiseco Bottom End Rebuild Kit for 2003-13 Yamaha WR250F - 53.60mm - WPC141 2007 Yamaha YZ85 Piston Size: 103Wiseco Performance Bottom End Rebuild Kit Wiseco now provides an all in one kit for your bottom end Made with the toughest materials for increased performance and life span Includes the Crankshaft Assembly, Main Bearings and Bottom End Gasket Kit Wiseco Crankshafts are 4340 steel, core hardened and tempered to reduce stress and optimize tensile strength. The crankshafts are made with a nitriding process for hardening rather than induction heat