• bigger rotors stopping better.

    But probably not in use on bicycles. As Brommers was saying, the very maximum stopping you can do occurs just before the wheels lock, hence ABS as you'll know. So if you can lock the wheels with a 140mm rotor, a 203mm aint gonna stop you any quicker

    Don't ask me about forks tho

    I've put a 203mm on the front of my cargo bike because there's no chance of me doing an endo on that and with a 2.1" slick tyre, losing grip either

  • Brommers was saying, the very maximum stopping you can do occurs just before the wheels lock

    Yeah this is the point that a lot of folk miss.
    In the Mtb side of things, people seem to think that the post mount will rip off a fork if you go one rotor size above what’s recommended.

    I challenge anyone to show me a post mount fail on a fork or frame due to the forces in using a larger rotor. I’ve never seen it happen.

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