Motorcycle Engine Accessories Bore 65.5mm Cylinder Assembly For SL230 CRF230 FTR223 230 XR230 This cylinder assembly is designed as a direct replacement for select motorcycle models including SL230, CRF230, FTR223, and XR230.With a bore diameter of 6.55cm, it precise fitment for these applications.Constructed from cast iron, the cylinder features a ceramic composite coating on the inner wall along with a Ni-SiC composite ceramic film, providing enhanced wear resistance and improved durability under temperature.The specialized coatings contribute to better heat dissipation, reduced friction, and increased resistance to corrosion, supporting consistent engine performance over extended use.Designed for performance-oriented riding, this cylinder assembly supports efficient combustion and power delivery.It meets ISO9001 standards for quality management, reflecting adherence to established manufacturing protocols.The kit includes the cylinder, piston ring, and gasket, providing all necessary components for installation.Intended for use in compatible models, verification of fitment is recommended prior to integration into the engine system.This upgrade supports improved engine efficiency and longevity for riders seeking performance enhancements.