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 19-20 Yamaha WR 450 F 450cc Standard Bore Cylinder Kit - CW20012K01 MSRP: $730.95 Was: Now: $546.39 Add to Cart
Cylinder Works 19-20 Yamaha WR 450 F 450cc Standard Bore High Comp Cylinder Kit 13.8:1 Comp 97mm - CW20012K01HC MSRP: $742.95 Was: Now: $555.36 Add to Cart
Cylinder Works 19-20 Yamaha WR 450 F 450cc Big Bore Cylinder 99mm - CW21012-1 MSRP: $502.95 Was: Now: $375.96 Add to Cart