• The tire is always the limiting factor in braking force (or overturning in case of full front brake). So for a given torque, a larger rotor will put less force on the fork.

  • Indeed. Rotor size has no effect on the maximum loading on the fork, on any bike where the brakes are powerful enough to lock up the front brake. Anyone who disagrees should immediately go out and buy L-shaped cranks. The limiting factor is how big a brake disc you can fit before it hits the inside of the fork leg. It's a geometric limitation, not a strength limit.

  • this is dangerously incorrect. a larger rotor gives more braking power which puts more force on the fork

  • The tire is always the limiting factor in braking force

    lol what

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