Different Types of Bike Brakes Available
Caliper brakes are single pivot side pull brakes. These brakes are usually found on most road bikes and some very inexpensive versions can be found on inexpensive BMX bikes.
U brakes were designed to have a low flat profile. Each arm attaches to a separate pivot located on the two seat stays, chain stays or fork legs just above the rim. U brake arms cross each other just above the tire and do not protrude past the outside of the frame.
Linear Pull (V-Brake)
V brakes provide more clamping force and easier adjustments than caliper brakes. Each arm attaches to a separate pivot located on the two seat stays or fork legs just below the rim. These brakes are most commonly found on BMX race bikes and mountain bikes and are sometimes referred to as linear-pull brakes.