Motocross Air Cylinder Block for DT230, TSE250, MT250, KEWS K16 – Engine Standard Bore 66.8mm The cylinder block is a central component of a motorcycle engine, responsible for housing the piston and maintaining combustion integrity.This air-cooled cylinder block features a standard bore diameter of 66.8mm and is designed for use in off-road motorcycles.It supports consistent engine by providing a precise fit and performance under riding conditions.Engineered for compatibility with specific models including the DT230, TSE250, MT250, and KEWS K16, this cylinder block integrates into existing engine configurations without modification.The design allows for efficient heat dissipation and maintains compression stability, contributing to sustained engine function over time.Installation follows standard procedures for motorcycle engine assembly.Proper alignment and adherence to torque specifications are required for results.When replacing a worn or damaged unit, this cylinder block helps restore engine efficiency, supporting improved power delivery and smoother piston movement within the cylinder chamber.This part suits riders and mechanics working on trail or motocross bikes who require a functional replacement component.Its construction supports in off-road environments, making it suitable for use in both routine maintenance and engine rebuilds.