Is heat build-up in disc brakes something to worry about?

Could the overuse of discs on long descents prove catastrophic? Cycling Weekly investigates

Despite being shunned by many, some pro riders included, disc brakes are increasingly featured on modern road bikes, particularly the popular endurance category.

On higher performance machines, hydraulic systems have largely replaced cable-operated brakes too, giving higher braking efficiency and better modulation. But along with that comes the increased potential for hard braking leading to heat build-up in the pads and rotors from the friction generated.

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