Brake Horsepower (BHP)

The measure of an engine’s horsepower without the loss in power caused by the gearbox, generator, differential, water pump, and other auxiliary components. Horsepower delivered to the rear wheel of a motorcycle is less than at the engine. “Brake” refers to where the power is measured: at the engine’s output shaft, as on an engine dynamometer. The term “brake” refers to the original use of a band brake to measure torque during the test (which is multiplied by the engine RPM and a scaling constant to give horsepower). See also: Horsepower and Torque


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  1. Horsepower : Motorcycle-Glossary.com on May 7, 2007 1:00 pm

    [...] A unit of measurement used to describe an engine’s strength. Typically, the more horsepower an engine produces, the faster the motorcycle can potentially go.  (See also: Brake Horsepower). [...]

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