12" Alloy Billet Hub Aluminum RED FRONT RIM for DISC BRAKE. It makes your bike more stable at high speed, stops wobbling, and rolls over obstacles easier. Specifications: SDG Style Alloy Billet Hub For DISC BRAKE only Size 1.40 X 12 inches Anodized 6061 Aluminum Rim Red color Max Load: 330 LBS 15mm inner diameter of the wheel bearing (15mm axle hole) This should fits most Chinese made pit bikes with DISC brake assembly.