Upgrade or replace your worn brake rotor with this Universal Go Kart Rear Disc Brake Rotor, built for most 150cc and 250cc buggies. With a 220mm outer diameter, 58mm center hole, and 4-bolt pattern, this rotor is precision-machined for a secure fit and reliable performance. Made from high-quality steel, it withstands rugged off-road use and ensures smooth, consistent braking. A built-in mounting hole accommodates speedometer magnets for compatible models, while still functioning perfectly on non-speedometer karts. This rotor cross-references multiple OEM part numbers including Hammerhead, Trailmaster, American SportWorks, and Polaris. Always verify dimensions and part numbers before purchase to ensure compatibility with your specific model. Ideal for both DIY repairs and professional shops, this replacement disc rotor provides a cost-effective way to keep your kart's braking system in top shape.