Front Brake Caliper Master Cylinder set for Honda ATV CRF250R CRF450R 2004-2017 36963809Introductions: Brake calipers are essential to your car's ability to stop and are arguably one of the most important automobile brake parts. Most cars today have disc brakes, and a lot of cars and trucks are now using disc brakes in the rear, too. In a disc braking system the car's wheels are attached to metal discs, or rotors, that spin along with the wheels. The job of the caliper is to slow the car's wheels by creating friction with the rotors. In