2012 Supersix Evo Tyre Clearance
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  1. #1
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    2012 Supersix Evo Tyre Clearance

    Being an older bike it has minimal tyre clearance around chainstay. I am running 25mm tyres. Stupid question but to maximise tyre clearance is it better to run the tyres at a higher or lower pressure? What pressure would you recommend? I'm 83kg.

    Many thanks.

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  2. #2
    tlg
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    You should run tire pressure based on your weight and riding conditions. Not for tire clearance. Besides, pressure change in the tire will have no affect on the tire width at the chainstays.

    What pressure would you recommend? I'm 83kg.
    I'd start at 80psi front. 100psi rear. Lower it as applicable.
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  3. #3
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    I suppose one could argue the lower the better if you are using tires that eventually stretch to become bigger. But even then I'm not sure it would matter and if it does they'll probably just expand a little later with less PSI.

    But as said there should be no connection between PSI and clearance.

  4. #4
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    Also consider road conditions just as important. If you know there are no chuckholes or sharp edges, you could probably reduce those # by at least 10# F/R.
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  5. #5
    changingleaf
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    Higher pressure will reduce your tire clearance. If the tire isn't rubbing the frame when you stand up and sprint or climb then you're probably fine at the pressure you're running. You can only go so low without risking a pinch flat. If you don't ride in groups or can always see a pothole before you hit it then you can get away with less air pressure.

  6. #6
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    Quote Originally Posted by changingleaf View Post
    Higher pressure will reduce your tire clearance. If the tire isn't rubbing the frame when you stand up and sprint or climb then you're probably fine at the pressure you're running. You can only go so low without risking a pinch flat. If you don't ride in groups or can always see a pothole before you hit it then you can get away with less air pressure.
    Thanks changingleaf. I'm using a 25mm Conti 4 season. How low can you go? Yes I ride by myself and happy to take the pinch flat risk. Cheers!

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  7. #7
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    At 220 lbs, I ran my 25's at 90 psi rear, 80 psi front without issue. YMMV
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  8. #8
    changingleaf
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    It can vary for different people. I would start with 80/90 and probably go up if necessary.

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