To get your brakes in peak condition, you will need to bed them in. When your bike leaves the shop with its shiny new brake pads and discs, their braking power is very weak. You will need to do 10 sharp decelerations per brake to bed them in. By deceleration, we mean going quickly from 25 to 5 km/h, but without stopping the wheel from spinning, and using just one brake at a time.