Motorcycle hydraulic brake system - uses pressure reduction valve, acting on rear brake when foot and handbrakes are applied

摘要

The hydraulic braking control for a motorcycle has a footbrake circuit, operating on the front and rear brakes, and a handbrake circuit operating on a second front brake, while at the same time reducing the rear brake pressure. This prevents slewing during heavy braking. The footbrake circuit has a pressure reduction valve between the master brake cylinder and the first front brake, with the reduction valve fully open where a set pressure level is reached. This ensures stable brake control for normal use, with the rear brakes applied fractionally before the front brakes, while ensuring overall braking efficiency.