The DN4 off-road version 4-piston rear wheel brake kit is a specialized braking system designed by Feizi FeccR specifically for off-road vehicles. The DN4 series adopts a split forging process and has a piston area of 28.28cm ², matched with the original mechanical handbrake. Minimum compatible with 17 inch wheels. The original bridge free position and internal oil circuit design make the calipers more durable. Ensure high-intensity braking system requirements for off-road vehicles in complex road conditions.