Upgrade the top end of your motorcycle with the Cylinder Works Standard Bore Cylinder Kit, manufacturer part number CW40005K01. Designed for select Suzuki RM-Z250 models, this complete kit combines a stock-style cylinder with a matched Vertex high-compression piston kit and gaskets for dependable performance, long service life, and reduced engine noise.
The 77.00 mm standard-bore configuration delivers a 13.75:1 compression ratio while maintaining the original-style appearance of the cylinder. Its nickel silicon carbide plating helps improve durability and wear resistance, making it a suitable replacement or performance-focused top-end solution for demanding motocross and off-road applications. The kit includes the cylinder, piston kit, and required gaskets for installation.
Designed as a direct-fit top-end package, the Cylinder Works kit requires no machine work for standard installation. It fits 2019–2024 Suzuki RM-Z250 motorcycles. The top-end gasket kit does not include valve stem seals, so those components should be sourced separately if required for the rebuild. Replacement pistons, gaskets, and ring sets are available to support future service needs.
Features:
- Standard bore cylinder kit designed for Suzuki RM-Z250 motorcycles
- 77.00 mm bore with a 13.75:1 compression ratio
- Includes cylinder, matched Vertex piston kit, and gaskets
- Nickel silicon carbide-plated cylinder promotes extended service life
- Matched piston design supports performance, longevity, and reduced engine noise
- Stock-style cylinder appearance
- No machine work required for standard installation
- Top-end gasket kit does not include valve stem seals
- Replacement pistons, gaskets, and ring sets are available
- Fits 2019–2024 Suzuki RM-Z250 models
- Brand: Cylinder Works
- Manufacturer part number: CW40005K01
- Vendor part number: 422-40005K
Fitment:
2019 Suzuki RM-Z250
2020 Suzuki RM-Z250
2021 Suzuki RM-Z250
2022 Suzuki RM-Z250
2023 Suzuki RM-Z250
2024 Suzuki RM-Z250