76.8mm Motorcycle Engine Part Air Cylinder Block For CRF250R CRF250 R 12100-KRN-A60 Motor Cylinder The 76.8mm Motorcycle Engine Part Air Cylinder Block is designed for use with CRF250R models from 2010 to 2017.This cylinder block serves as a core component of the engine, facilitating the conversion of chemical energy from fuel and air into mechanical power.With a displacement of 250ml and a single cylinder configuration, it supports consistent performance across various riding conditions. Constructed from aluminium , the cylinder block provides and reduced friction during.The material contributes to efficient heat dissipation and sustained engine performance.The product meets ISO9001 standards for quality assurance, reflecting adherence to established manufacturing criteria. This air cylinder block matches OEM specifications 12100-KRN-A60 and features a diameter of 76.8mm, compatibility with designated motorcycle models.It is engineered for direct replacement installation without modification.The design supports integration into the engine system, offering a practical solution for maintenance or performance-oriented. Important: This product is an aftermarket alternative.Brand names mentioned serve only to show which devices it fits.