Product Description OEM-style standard bore kits include a cast aluminum Cylinder Works cylinder, Vertex Piston and gaskets needed to restore horsepower and performance, as a competitive price point, compared to OEM options.
Cylinder Works 04-09/12-13 Yamaha YFZ 450 450cc Standard Bore Cylinder Kit - 20001-K01 MSRP: $694.95 Was: Now: $519.48 Add to Cart
Cylinder Works 2017 YFZ 450/09-23 YFZ 450 R Standard Bore Cylinder Kit - 20003-K02 MSRP: $730.95 Was: Now: $546.39 Add to Cart
Cylinder Works 07-15 WR 450 F/2017 YFZ 450/09-24 YFZ 450 R Standard Bore Cylinder - 20003 MSRP: $380.95 Was: Now: $284.76 Add to Cart