Cylinder Works Suzuki RM-Z250 2010-2012 Standard Bore Cylinder Kit 40004-K01

When your RM-Z250 cylinder shows signs of wear—scoring, loss of compression, or increased blow-by—a factory replacement often means sending your engine out for expensive machine work and re-plating. The Cylinder Works Standard Bore Kit eliminates that hassle with a complete, ready-to-install assembly that bolts directly onto your engine. You get matched Vertex pistons, precision machining, and durable Nickel Silicon Carbide plating all in one package, allowing you to get back on the track without downtime or surprises.

This kit is engineered for riders who demand reliability without compromise. The Nickel Silicon Carbide plating significantly reduces cylinder wear compared to standard iron, while the matched piston set minimizes ring blow-by and engine noise. Since everything arrives pre-assembled and fitted, there's no guesswork—just bolt it on and ride.

• Direct bolt-on replacement
• Matched Vertex pistons included
• Nickel Silicon Carbide plating
• Standard bore sizing
• Complete gasket set included
• Piston rings & clips included
• U.S.A. manufactured
• Fits RM-Z250 2010–2012
• No re-plating required
• No machine work needed