Cylinder Works Standard Bore Cylinder Kit (422-50011K / CW50011K01) | KTM / Husqvarna 300 (2020-2023)

Complete high-performance standard bore cylinder kit engineered to deliver a comprehensive, ready-to-install top-end refresh for modern fuel-injected two-stroke off-road engines. Features a premium cast aluminum cylinder finished with a durable nickel silicon carbide (NSC) electroplate bore and diamond honed to exact specifications, paired with a matching Vertex piston kit and top-end gaskets to ensure optimal ring seal, reduced friction, and superior heat dissipation under aggressive trail and racing conditions.

Specs & Details

• Manufacturer Part Number: 422-50011K
• Alternative Part Number: Cylinder Works CW50011K01
• Kit Type: Complete Standard Bore Cylinder, Piston, and Gasket Kit
• Bore Size: Standard (72.00 mm)
• Material & Construction: Cast aluminum cylinder with nickel silicon carbide plating, matched with a high-performance Vertex piston

Two-Stroke Vehicle Fitment

TSO Garage Note

The ultimate drop-in solution for refreshing a high-hour Austrian 300cc powerhouse. Whether you are dealing with scoring from a ingested trail grit or simply logging routine maintenance on your TPI machine, this complete kit pairs a factory-matched nickel silicon carbide cylinder with a premium Vertex piston and gaskets. It eliminates the downtime and hassle of sending out a core for replating, restoring crisp fuel-injected throttle response and dependable bottom-end pull for technical single-track or open-desert loops.