Restore your Suzuki’s legendary snap with the L.A. Sleeve Two-Stroke Cylinder Sleeve (FL5420). Engineered from high-density chrome-moly alloy, this sleeve provides a superior wear surface that outperforms stock longevity while maintaining optimal heat transfer. Every sleeve features precision-cut ports designed to match your RM125’s original dimensions perfectly, ensuring a seamless installation and immediate power recovery without the headache of manual port alignment.
The FL5420 arrives with a precision centerless-ground outside diameter, guaranteeing a tight, reliable fit into your cylinder casting. Designed for the standard 54mm bore, this sleeve offers a fresh start for engines with worn or damaged walls, allowing you to bore and hone to your specific piston size for a custom, high-compression seal. Don’t let a tired top-end keep you off the podium, rebuild with the industry standard in power and durability.
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 54mm
- 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.
