Cylinder Works 21-23 WR 450 F/20-22 YZ 450 F/21-23 YZ 450 FX Standard Bore Cylinder

If you're looking to get your 2020 or 2021 Yamaha YZ450F back to its original power, this standard bore cylinder kit from Cylinder Works is a solid option. It's designed to replace your stock cylinder and bring back that lost horsepower and performance, giving you a more responsive ride.

This kit includes a cast aluminum Cylinder Works cylinder, a Vertex piston, and all the necessary gaskets to complete the job. The cylinder itself features a nickel silicon carbide (NSC) electroplate bore. This advanced plating allows for tighter tolerances, which means less friction and a more durable cylinder wall. It's also precision diamond honed to exact dimensions, ensuring your piston rings seal properly and retain oil effectively, which is crucial for engine longevity and consistent power delivery.

Compared to buying OEM parts, this kit offers a competitive price point while still delivering the performance you need. It's a straightforward way to rebuild your engine's top end and get back on the trail or track.