The Front Rear Disc Brake Caliper Assembly Kit is specifically designed for Razor MX500 and MX650 models, providing reliable braking performance for your bicycle. This set includes a caliper for both front and rear discs, ensuring smooth and efficient braking. With a sleek design and durable construction, this kit is easy to install and provide a 4.8 out of 5 stars rating from satisfied customers. Upgrade your braking system with this essential component for enhanced safety and control on your rides.