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Thread: Tire size?

  1. #1
    Senior Member jr59's Avatar
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    Tire size?

    I have a 85 trek 620 that is running 700 wheels and canti brakes.

    I have 28's on it now, any idea how big of tire I can fit?

    Dyad rims.

    thanks
    Gravity hates us all, but it hates me more than thin people!

  2. #2
    Senior Member
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    Measure the distances between the fork blades and the seat and and chain stays at the point where the tires are widest. You'll need some room on either side of the tire, probably 8mm. Remember that the width of the tire stamped on the tire and the actual width might vary.

  3. #3
    Fat Guy on a Little Bike KonAaron Snake's Avatar
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    I just sold one...AT LEAST 32s.

  4. #4
    )) <> (( illwafer's Avatar
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    i had an 85 520, and 32s would have probably fit...but probably not 35s.

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