The Rear Sprocket Chain Wheel is a perfect match for your XJR400, offering reliable performance with 45T teeth, ideal for a 520-drive chain. This unit is designed to replace your existing chain wheel, ensuring a seamless fit. The high-durability material ensures long-lasting service, reducing the need for frequent replacements. Its compact design allows for easy installation, saving you time and effort. With its compatibility with your specific bike, you can benefit from enhanced pedaling efficiency, improved acceleration, and a safer riding experience. Choose the Rear Sprocket Chain Wheel for a reliable upgrade that delivers on performance and value.