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The braking power is similar across all the Shimano calipers, you could get some hope rx4 calipers which seem more powerful but are a bit more awkward to set up. Easiest is 180 front rotor but you might be limited by the fork. TBH they should work plenty well enough as is if they're working right.
snottyotter-
First step sounds like servicing them properly, myself, so I learn more about them, and then maybe swapping to hopes and a 180 front (which I think I have room for).
Am I naive to think that mountain bike brakes plus the biggest rotors I can fit would give me better stopping? I don’t mountain bike and haven’t found anyone asking the same question really. Are MTB discs “better” or are they just “different” somehow.
And is it wrong to want the best possible stopping power? It means I can go faster 😬
t.o.
Apparently I haven’t had a disc brake related question for 9 years, but I enjoyed this.
Anyway, I have a road bike, 160mm front and back, flat mount, shimano 105 currently. I want to achieve the best braking possible (I’m tall, I always weigh too much to be any good at cycling and currently weigh even more).
What is my best plan of action? Buy mtb callipers, bigger discs and adaptors, if the discs will clear my frame? Am I restricted to Road callipers? Am I right to feel that road callipers are less powerful than mtb, and if so why….?
Please and thank you in advance.