An anti-locking braking system for the wheel of a motor vehicle having a distributor with a slide which in one attitude permits fluid at full braking pressure to immediately enter the brake cylinder, but after a device detecting locking has operated so that the cylinder is exhausted, exhaust fluid is bled to the distributor to move the slide to a second attitude which routes the supply of pressurized fluid to the cylinder via a flowlimiter whereby the pressure rise in the cylinder increases progressively provided the brake pedal remains depressed.