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 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
Cylinder Works 2017 Yamaha YFZ 450 Big Bore Cylinder Kit - 21003-K02 MSRP: $808.95 Was: Now: $604.69 Add to Cart
Cylinder Works 2017 Yamaha YFZ 450 450cc Standard Bore High Compression Cylinder Kit - 20003-K02HC MSRP: $730.95 Was: Now: $546.39 Add to Cart