The caliper pads inside your trailer are essential to keep it in working order and ensure youre safe when traveling along the roadway. Caliper pads and your rotor work in sync when you apply your brakes; by creating friction they help to slow the spin of your tires. Its critical to replace your caliper pads when they are worn down and out of shape to keep the brakes of your trailer in working order. The DB42 inner and outer pads are an excellent option for replacement pads within your trailer. The inner and outer disc pads are interchangeable for whichever configuration needs replacing, or we always recommend replacing the pair instead of waiting it out until the other pad is worn down. Cushioning your brakes pads and pistons is integral to keeping your braking system from getting worn down too quickly and requiring additional replacement parts. Need hardware to go with the caliper pads DB42? The recommended clips and retainer to compliment your caliper pads are available here on our website. At SkipperMate Marine were always going the extra mile to provide all the trailer spares you need on one easy to use online platform.