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: $788.95 Was: Now: $670.61 Add to Cart
Cylinder Works 21-23 Yamaha WR 450 F 450cc Standard Bore Cylinder Kit - CW20014K01 MSRP: $683.95 Was: Now: $581.36 Add to Cart
Cylinder Works 21-22 Gas-Gas EX 450 F 450cc Standard Bore Cylinder Kit - CW50009K01 MSRP: $836.95 Was: Now: $711.41 Add to Cart