Quote:
Originally Posted by j-c-c
Back to OP's original question, the profusion of ABS in the last two decades has leaned/leaning towards disc brakes, mainly because ABS pulses the brake pressure allowing for slight rotation of a locked/locking tire, and a drum system will not respond fast enough to keep up with the ABS modulation.
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ABS brakes had been mandatory for cars and commercial vehicles since 2014 in my country, and drums are still more common on medium-duty and heavy-duty trucks, and buses. When it comes to motorcycles, drum brakes on them have always been mechanically-actuated, while discs became hydraulic sooner, even though some models from the '70s featured mechanical disc brakes. The only motorcycles I see with ABS are fitted with disc brakes at least upfront.