Features: 1.Applicable Model: The rear brake master cylinder is a replacement for Sunl Pitster SSR 110 125 140cc Dirt Pit Bike, please check before ordering. 2.Reliable Brake Control: This rear brake master cylinder pump ensures smooth and reliable control of the rear brake system, enhancing the safety and performance of your vehicle. 3.Durable Construction: Made with high strength materials, this pump is built to withstand the demands of heavy braking and prolonged use, ensuring long lasting durability. 4.Improved Braking Efficiency: With its precise design, this pump enhances the braking efficiency of the rear wheel, allowing for better responsiveness and shorter braking distances. 5.Easy Installation: Designed for easy installation, this rear brake master cylinder pump can be quickly and securely mounted on your vehicle without the need for complex modifications. Specification: Item Type: Rear Brake Master Cylinder Material: Metal Fitment: Replacement for Sunl, for Pitster, for SSR 110 125 140cc Dirt Pit Bike Note: 1. After installation, be sure to drain the remaining air in the brake system 2. Professional installation is highly recommended