Wiseco 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 treated. This eliminates any softening between the journals and any post running deformation. Our crankshafts also feature straight oil holes for the best oiling to the rod journals to insure you get the best crank for your money. Each K1 crankshaft is magnetic particle inspected and held to a maximum tolerance of .0002 journal dimension. Counterweights are placed for optimal load reduction and ease of balancing making less work for you or your builder.

Product Details

Items Included

(1) Crankshaft assembly
(2) 22x56x16 Bearings
(3) Crankcase cover gaskets
(1) Water pump gasket
(1) O-ring
(1) 32x44x8 Seal
(1) 22x40x7 Seal
(1) 26x38x5 Seal
(1) 12x22x5 Seal
(1) 12x18x5 Seal
(1) 12x19x5 Seal
(1) 12x25x7 Seal
(1) 8x12x3 Seal

Fitments

2000 Yamaha YZ125
1999 Yamaha YZ125
1998 Yamaha YZ125