Bring your 2003 Suzuki RM250 back to its peak powerband with the L.A. Sleeve FL5494. This high-tensile chrome-moly alloy liner is the professional's choice for bypassing the high cost of Nikasil replating while gaining a more durable, re-boreable surface. The centerless-ground outer diameter eliminates fitment guesswork, sliding into your cylinder with exact tolerances to ensure optimal thermal transfer and structural stability during high-RPM operation.
The FL5494 is specifically ported to mirror the RM250’s aggressive 250cc power profile, featuring CNC-shaped ports that guarantee seamless gas flow and timing accuracy. Arriving with a 66.40mm standard bore, this sleeve provides the ideal foundation for a custom-tailored finish, allowing your machinist to achieve a perfect piston-to-wall clearance. Shop Cheetah’s Powersports today to give your Suzuki the professional-grade heart it needs to shred the track.
Features:
- Cylinder sleeve made from chrome-moly alloy
- Outside diameter precision centerless ground
- Ports cut to precision dimensions and shapes for ease of installation and port match-up
- Inside diameter must be bored and honed to size piston after installation
- Standard bore size 66.40mm
- For cylinder # 37F2
- Original cylinder bore is alloy-chrome plated, Nikasil, or electrofused.
- The cylinder must be bored to accept the new cylinder sleeve.
- For liquid cooled engine.
- Inside diameter must be bored and honed to size piston after installation.
- Product images may only represent the class of product and not the specific model.
