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 99-23 Yamaha YZ 250 250cc Standard Bore Cylinder Kit - 20009-K02 MSRP: $1,051.95 Was: Now: $786.34 Add to Cart
Cylinder Works 99-23 Yamaha YZ 250 250cc Standard Bore Cylinder Kit - 20009-K01 MSRP: $780.95 Was: Now: $583.76 Add to Cart
Cylinder Works 99-24 Yamaha YZ 250 250cc Standard Bore Cylinder Head - CH2001-K01 MSRP: $243.95 Was: Now: $182.36 Add to Cart