Brand New and Aftermarket Rear Disc Brake Calipers Fit China ATVs, Dirt Bikes, Go Karts. Mounting hole center to center approximately 52mm [2.05 ]. Easy installation, direct fit, stable characteristics and high reliability. Package contains 1 rear brake caliper with pads. After changing calipers and filling hydraulic fluid, be sure to bleed out any remaining air in the brake system to ensure that the calipers work effectively. Specification: Material: Metal Color: Silver Mounting Hole: 52 mm [2.05 in] center to center Package Included: 1 X Rear Brake Caliper Description: atv rear brake caliper 50cc 70cc 90cc 110cc compatible with four wheel kart taotao sunl. Brake caliper pump with pads for 150cc 200cc 250cc bull quad dirt bike atv Chinese rear disc brake caliper.