A small comment about this question of "pumping" the brakes, and where is comes from.
On old cars (and I was born when now called old cars were what we were driving....
), this was very often necessary as, on a strong braking, hydraulic oil would seep past the seals (in both the master cylinder and...the brakes, making them nicely oily!!!!), and the pedal gradually, but not that slowly, go down to the car's floor. The only thing to do was to release the pressure on the pedal and push again, quickly. Best was to get used to do it in short bursts, hence the also called "pumping".
This was even worse after the brakes had heated up, like on a mountain road, the drums dilated, and the brakes loosing nearly all their efficiency. Then, in order to keep the pads as close as possible to the drum, fast pumping was necessary, so that the pads did not have the time to retract under the pull of the spring.
Not only these are bygone days, but a on motorbike, with cable brakes, one never needed to do so. Moreover, with disc brakes, where the pads are in constant (light) contact with the disc, there is even less need for such practice: it is just dangerous as it reduces the braking efficiency!