Road bike brake shoes

Brake shoes are usually made of two pieces of steel welded together. The friction material is riveted to the board liner or glued on. The crescent-shaped piece is called a net and has holes and slots in different shapes that hold the automatic readjustment elements, the recoil spring, the connection with the parking brake and the support bracket. All the force of the cylinder (or cylinder) is applied through the net to the board and the brake lining. The edge of the liner usually has three "V" shaped notches or notches called nibs. The jibs rest against the backplate support pads on which the shoes are installed. Each brake assembly has two shoes, one primary and one secondary. The primary shoe is located facing the front of the vehicle and has the liner or liner located differently from the secondary shoe. Very often, the two shoes are interchangeable, so a detailed inspection for any variations is important.

Coatings must be resistant to heat and wear. Also have a high coefficient of friction that is not affected by fluctuations in temperature and humidity. The materials from which pads are made include friction modifiers (which may include graphite and chestnut shells), powdered metals - such as lead, zinc, bronze, aluminum, and other metals - that resist heat drops, binders, curing agents and fillers such as rubber chips to reduce noise when braking