Fit For CRF450R CRF450X CRF250RX CRF450RX Motorcycle Rear Brake Master Cylinder Pump Quiet operation: reduces brake noise, delivering a quieter and more pleasant driving experience Product description: easy installation, good sealing, flexible hole spacing, high compatibility This accessory runs reliably in harsh weather conditions, featuring great heat resistance and anti-aging performance for prolonged service life. With strong adaptability to harsh weather and excellent heatproof capability, it keeps working steadily and enjoys an extended service life., Manufacturer: CQJJXKYC