Originally Posted by
saddlesores
Only it won't function like a tandem drag brake, at least not for long.
There must be a reason all drag brakes are drums.
I assume that constant application on a disc will overheat and glaze the wee, tiny pads.
Without a stoker, you won't have two rear brake levers.
The drag brake would be operated with a friction thumb shifter.
I wonder how a drum brake is able to withstand more prolonged drag braking than a properly specced disc brake. Drum brakes are enclosed so not much heat dissipation from the actually heating elements of the brake.
There are ways to make a disc brake more heat resistant and prevent pad glazing. Mechanic caliper, 203mm or even 220mm rotor, metallic pads and added rotor thickness (tektro makes a rotor that's 2.3mm thick. Standard is 1.6mm or 1.8mm)