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Motorcycle Brake Systems in the forum
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December 3, 2016 9:53 AM PST
Copyed from Wikipedia
In many countries, including the United States, the law requires a motorcycle to have two separate braking systems.[3] Invariably, the handlebar lever operates the front brake, and the foot pedal operates the rear. Any bike with CBS must still have two separate inputs for braking, even if (as on the Honda VFR1200) each control independently operates both front and rear brakes. By contrast, a car is required to have only one braking system for dynamic braking (i.e. braking when moving), plus a separate parking brake.
The justification for two separate braking systems is that, compared to cars, a motorcycle has, proportionately, a higher centre of gravity, a shorter wheelbase, a higher power-to-weight ratio, and a smaller tyre contact patch area. All these factors lead to a much greater weight transfer to the front wheel on braking, and a greater risk of skidding.[4] A rider needs to be able to use each brake independently to maintain control, and a CBS system seeks to further reduce any skid risk.