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different size tires front to rear

JterrierJterrier Posts: 97
edited September 2016 in Cyclocross
Having thought about it for a while, I am wondering about going for different tires front to back on my CX bike (its a well accepted XC racing trick). Clearances at the fork are way better than at the back so I reckon i could do maybe 38F & 35R or maybe 40F & 38R.

Anyone got any experience of this? I see the benefits as more squash and grip at front for no disadvantage at rear. Tubeless both ends BTW.


  • tgotbtgotb Posts: 4,714
    I haven't tried this, mostly because of the rules limiting maximum tyre width to 33mm at National level races, and because my opponents are all on 33mm tyres. I often use different treads front and rear though, and almost always have the front tyre around 10% softer.
    Pannier, 120rpm.
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