| 摘要 |
In a motorcycle provided with a brake, a link supporting brake caliper is fitted to a wheel axle such that it is free to oscillate, an oil chamber being provided which enlarges or contracts according to the oscillation of this link, and which is connected to a pressure passage supplying oil pressure to the brake caliper. An electromagnetic valve is provided for opening and shutting this pressure passage, and a mechanism for detecting a pre-lock condition of the wheel. By shutting the electromagnetic valve when a pre-lock condition is detected, oil pressure supply to the brake caliper is shut off, and rise of braking pressure is prevented. If the pre-lock condition persists after the oil pressure has been shut off, the oil chamber is enlarged by varying the oscillation angle of the link so as decrease the braking pressure and prevent the wheel from locking.
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