The bike brakes weakly
1.
Enabling screw
Loosen the screw that holds the brake cable taut with a number 5 Allen key.
2.
Brake cable tension
Tighten the brake cable more than it was to bring the brake rubber closer to the rim of the wheel.
3.
Retracting the screw to its original position
Pull the screw back to its original position to secure the cable in the position you need.
4.
Brake cable control
Check that the brake cable is tensioned correctly, whether it needs to be tightened or loosened slightly. You should have a space of about one millimetre between the brake rubber and the rim.
