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  1. #1
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    what is bontrager 750 rim width in trek 7.2 fx 2010?

    i'm thinking of buying a trek hybrid with wider tires. once i know rim width then i'll use sheldon's chart for the conservatively widest tire that i can use.

    http://www.trekbikes.com/ca/en/bikes/bike_path/fx/72fx/

    http://www.sheldonbrown.com/tire-sizing.html

  2. #2
    aka Phil Jungels Wanderer's Avatar
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    Just remember that guide is a "guide".

    Many tires are now offered that don't fit in those categories.

    Case in point - my Crosstrail came with 45mm wide tires on an 18mm wide (internal width) rim.

    According to that chart, it shouldn't fit - but they were fine.

    "Retirement is the best job I ever had!" Me, 2009


    Specialized Crosstrail Sport - '08
    Nishiki Sport - misappropriated from my youngest son (circa 1984)
    Marin Stinson - misappropriated by my youngest grandson - '01
    "The Beast" - 1990 Schwinn Airdyne (in the basement for winter torture)

  3. #3
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    thank you wanderer for your always helpful, reliable advice. i really appreciate it. that's a good point. sheldon brown mentioned in his article that bicycle companies these days put very wide tires on narrow rims to save weight. to this i agree with grant peterson...a frame should weigh what it ought to weigh. i called up trek and they suggested a 35 mm is how wide we should go. right now i'm checking out a mountain bike since i already have a hybrid.

    thanks again!

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