Upgrade your ATV or go-kart's braking system with this heavy-duty 160mm (6.3") Rear Brake Disc Rotor, designed for durability, smooth performance, and wide compatibility. This rotor is engineered to fit most 50cc, 70cc, 90cc, 110cc, and 125cc Chinese ATVs and youth go-karts, including popular brands such as TaoTao, Coolster, Roketa, Kazuma, Baja, BMS, Jetmoto, and SUNL. Built from high-strength, heat-treated steel, the rotor offers excellent resistance to warping and wear—even during intense or repeated braking. The precision-machined surface ensures stable friction, improved stopping power, and smooth engagement, making it an ideal replacement part for restoring safe and reliable braking performance. Installation is quick and straightforward thanks to its OEM-style bolt pattern. Simply remove the old brake disc and install this new 160mm rotor using your existing hardware—no modifications required. Whether you're repairing a kids' ATV, refurbishing a youth quad, or improving your off-road machine, this rotor is a dependable, cost-effective upgrade that delivers consistent performance ride after ride.