A disc brake is a brake that grips a metal plate at the hub. Fit a disc brake.
It works in the wet, where a rim brake spends the first turn wiping the water off. A disc brake gets hot enough on a long descent to burn a hand badly.
1noundisc brakeA brake that grips a metal plate at the hub.
“The disc brake stopped it far shorter in the rain.”
disc brake is a brake.
Practised in Cycling