MarkJohnston said:
... ARE VERY GOOD. ...
....easily lock up a tire with these.
Locking up a tyre is by no means a good way of estimation of the power of a braking system.
You will take longer to stop, any time a tire lock up and slides. Just look at ABS braking systems and some of the inherent complications surrounding the design of such... with mindful relation to time and force and speed. ABS will stop you faster in an identical bike, than one with the ABS switched off... Given identical reaction times and initial velocities.
Brakes use power.
We know what power is. Force and mass. That stuff. All those physics and stuff. Taming them wild horseys.
Horsepower.
A good brake system does not lock up.
A good brake system has enough power to keep the bike slowing down ( win) while not locking up ( fail).
A good brake takes most of the speed out of the rolling mass. The instant it locks up, it has failed to perform ( " unloads"). Locked up brakes have nothing to do with ( momentary inertial) power, they just have the friction of the road to the tire... and that turns to smoke and liquid rubber really gfast.. and smokey liquid rubber is not very... quick to slow you down.
Quite the opposite, actually. Locked tyre sliding with momentum and an initial velocity? Slide a mile on grass, slide 10 on glass.. slide till you hit something stationary while you are sliding, locked, on a film of melted rubber.... OR.... slide ten feet in friction filled sandtrap.... to outbrake.
Its a coefficient of friction.
Good brakes? They ( It ) takes the top 75% of the speed off the momentum, first, then takes its time with the last 25%... or so.. like a radial mounted floating 320mm pair of superbike rotors... with the right master and stainless ( hard?) lines to back it up...
A bad brake system takes 25% of the top end.. and takes its time with the last 75% fof the speed... because it cvould not sustain the power needed for deceleration, rotors overheated.. and .. and or locks up ... ect. Wham.
Its power. Takes power to go fast.. and... takes even more power.... to slow down fast. Takes a hellubvalotta power.
Galfer makes a 242mm bicycle rotor.