User's Manual
68
HOW THINGS WORK
HOW THINGS WORK
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BRAKES
NOTE: For most effective braking, use both brakes and apply them simultaneously.
1. How Brakes Work
It’s important to your safety that you instinctively know which brake lever controls which brake on your bike. In
the U.S., bikes are required to be set up with the right brake lever controlling the rear brake, and then left lever
controlling the front brake. Make sure that your hands can reach and squeeze the brake levers comfortably.
The braking action of a bicycle is a function of the friction between the brake surfaces - usually the brake shoes
and the wheel rim. To make sure that you have maximum friction available, keep your wheel rims and brake
shoes clean and free of lubricants, waxes or polishes.
Brakes are designed to control your speed, not just to stop the bike. Maximum braking force for each wheel
occurs at the point just before the wheel “locks up” (stops rotating) and starts to skid. Once the tire skids, you
actually lose most of your stopping force and all directional control. You need to practice slowing and stopping
smoothly without locking up a wheel. The technique is called progressive brake modulation. Instead of jerking
the brake lever to the position where you think you’ll generate appropriate braking force, squeeze the lever,
progressively increasing the braking force. If you feel the wheel begin to lock up, release pressure just a little
to keep the wheel rotating just short of lockup. It’s important to develop a feel for the amount of brake lever
pressure required for each wheel at different speeds and on different surfaces. To better understand this,
experiment a little by walking your bike and applying different amounts of pressure to each brake lever, until the
wheel locks.
WARNING
Some bicycle brakes, such as linear-pull and disk
brakes, are extremely powerful. You should take
extra care in becoming familiar with these brakes
and exercise particular care when using them. Ap-
plying these brakes too hard or too suddenly can
lock up a wheel, which could cause you to lose
control and fall.
WARNING
Sudden or excessive application of the front brake
may pitch the rider over the handlebars, causing
serious injury or death.