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 21-23 Yamaha WR 450 F 450cc Standard Bore Cylinder Kit - CW20014K01 MSRP: $632.95 Was: Now: $473.13 Add to Cart
Cylinder Works 21-23 Yamaha WR 450 F 450cc +2mm Big Bore Cylinder Kit 470cc - CW21014K01 MSRP: $720.95 Was: Now: $538.91 Add to Cart
Cylinder Works 21-23 Yamaha WR 450 F 450cc Big Bore Cylinder 99mm - CW21014-1 MSRP: $458.95 Was: Now: $343.07 Add to Cart