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Thread: Tire "size" vs. rim width

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  1. #1
    Join Date
    Sep 2002
    Posts
    745

    Default Tire "size" vs. rim width

    Just picked up a pair of Continental 29r X King tires. They are labeled as 2.4" tires. On the stock rims on my Santa Cruz TallBoy they measure a whopping 2.1". Not at all what I had hoped for. :-( The outer width of my rims is .9". The stock "2.1 tires" measure a bit under 2" on a slightly wider rim. At least that is sort of close to what is claimed.

    My question I guess, is whether rim width hugely effects final tire width or whether Continental is just full of ... claiming a 2.4" width.

  2. #2
    Join Date
    Dec 2008
    Posts
    355

    Default

    wider rims will roll it out a bit, but it more rolls the side walls out. I'm running Velocity P-35 rims and used Conti tires for yrs. Loved them other than the tread face is narrow leaving the sidewalls exposed with the wider tires. I ran a 2.2 Xking last yr on the rear in the snow and it worked just as well as anything I've used before short of a studded.

    Conti's expand over time, lightly over inflate them for the 1st month or so when you're not riding ( I used around 40-45lbs) will help stretch them faster. I had 2 sets of Mtn kings, a race king and a Xking and they all came close to the spec after some time, thou never quite all the way and my rim is over 2x wider than yours. Your rim is thin, thinner than the standard from your spec (.9inch = 22.4mm most stock are 24mm -ish )
    Last edited by thomllama; December 23rd, 2013 at 06:49 AM.
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  3. #3
    Join Date
    Mar 2012
    Posts
    33

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    Conti's are notoriously under sized.

  4. #4
    Join Date
    Sep 2002
    Posts
    745

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    Thanks guys! Regardless of size the tread pattern of the X king should be way better than the stock ones!

  5. #5
    Join Date
    Apr 2008
    Posts
    238

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    Grab some Maxxis Ardents in a 2.4 or some of the new On-One tires if you want volume and burl.
    In some mysterious way woods have never seemed to me to be static things. In physical terms, I move through them; yet in metaphysical ones, they seem to move through me.
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