Best tyre size

wacka
wacka Posts: 169
edited May 2014 in Road buying advice
Hi

I've just purchased shimano Dura Ace 9000 C50 Clinchers and was wondering what size will perform better, 23mm or 25mm Continental GP4000sll?

Cheers

Comments

  • Moonbiker
    Moonbiker Posts: 1,706
    25mm is the new 23mm.
  • neeb
    neeb Posts: 4,473
    Could be either:

    Most aero - depends on the wheel width (don't know how wide the C50s are).
    Least rolling resistance - depends on the road surfaces where you are.

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