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 Capable of stable operation in inclement weather, this accessory has strong anti-heat and anti-aging properties for long-term use. With remarkable weatherproof and high-temperature resistant properties, it maintains efficient working status and boasts outstanding longevity., Manufacturer: PUAYQBVY