24
RIM BRAKE SYSTEMS
There are several types of rim brake systems, such as Cantilever, V-Brake and
Horseshoe.
These systems are composed of levers which are connected to the brake by
cables or hydraulics.
When pressure is applied to the levers, the brake pads act on the rim to brake
the wheels, which slows the bicycle.
The components of these systems include the rim, the brake levers/fluid reser-
voir, the brake cables and casings/hydraulic hose, and the brake shoes.
The brake fluid in the hydraulic system is highly corrosive and can damage
the skin and paintwork of the bicycle if it comes into contact with them. In
addition, it is important to note that rims designed for disc brakes should not
be used on these systems. The rims must have a flat surface so that the brake
pads can act properly.
INSPECTION
Before riding the bike, tighten the brake levers rmly. The lever must not come
into contact with the handlebar. If the lever touches the handlebar, the travel
must be adjusted as explained below. If there is a hydraulic system, it must be
bled. This action must be done by your authorized dealer, as it requires specic
material and knowledge.
Also, if you have a hydraulic system, check that there are no kinks or leaks in
the hose. Replace any hydraulic part that fails inspection. This task requires
specic knowledge and tools, so it must be performed by your authorized
dealer.
When the brakes are not applied, the shoes should be 1-2mm from the rim. The
shoes must be flush with the surface of the tire. If your brakes are too loose,
tight, or out of line with the rim, adjust them before riding.
The angular alignment of the shoe must be taken into account to avoid brake
squeal. Old brake shoes and some new V-Brakes may not require such align-
ment.
Once a month, check the condition of the shoes. The shoes have small inden-
tations on the friction surface. If any of these notches are less than 2mm deep,
or less than 1mm on V-Brakes, the shoes must be replaced. In the event that
your shoes were originally not embossed, replace them when the end of the
rubber block is only 3mm from the metal support.
To Next Page
Loading...
