Wiseco Bottom End Rebuild Kit for 2005-22 Yamaha YZ125 - 54.50mm - WPC163 2001 Suzuki DR-Z 250 1998 Polaris Big Boss 500

1998 Polaris Big Boss 500 6x6

1990 Yamaha FZR600R

Part Number: PK1589

2007 Harley-Davidson Road King Custom (EFI) - FLHRS

conventional O-rings and X-rings loosen their seal whereas the SRS has the inherent ability to regulate a constant sealing pressure against the side plates throughout the life of the chain

Wiseco Bottom End Rebuild Kit for 2005-22 Yamaha YZ125 - 54.50mm - WPC163 2001 Suzuki DR-Z 250 1998 Polaris Big Boss 500Wiseco 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