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Thread: Tire size help

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    Tire size help

    My son-in-law is looking for tires for an old bike. The tire is a 26 x 1-1/2 x 1-5/8. The rim says the size is 1-1/2. Does anyone have any idea where such tires might be found?

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    Quality Bicycle Products used to carry them. Most any shop should be able to order from QBP. Roger

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    Tire size

    After reading at sheldonbrown.com that a 26 x 1-1/2 is not the same as 26 x 1.50 I was trying to find an exact match. I checked the link to Nashbar. They list 26 x 1.25 & 26 x 1.75 tires. Would both sizes work as replacements for the 26 x 1-1/2 x 1-5/8?

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    Insane Bicycle Mechanic Jeff Wills's Avatar
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    Quote Originally Posted by Lippy View Post
    After reading at sheldonbrown.com that a 26 x 1-1/2 is not the same as 26 x 1.50 I was trying to find an exact match. I checked the link to Nashbar. They list 26 x 1.25 & 26 x 1.75 tires. Would both sizes work as replacements for the 26 x 1-1/2 x 1-5/8?
    No, the Nashbar tires will not fit your wheel. Their rims are 559mm at the bead seat, yours is probably 584mm. Twisted but true: they're nominally the same size, but there's nearly an inch difference in diameter. Go back to Sheldon's article and read up on the difference between fractional and decimal size tires.

    Given the information you've posted, I think you might have a 650B tire. If this is true, then you have a couple choices to pick from:
    http://harriscyclery.net/page.cfm?Pa...nsearch=Search
    Jeff Wills

    All my bikes.

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    Quote Originally Posted by Lippy View Post
    After reading at sheldonbrown.com that a 26 x 1-1/2 is not the same as 26 x 1.50 I was trying to find an exact match. I checked the link to Nashbar. They list 26 x 1.25 & 26 x 1.75 tires. Would both sizes work as replacements for the 26 x 1-1/2 x 1-5/8?
    When a tire size is listed in decimals like 1.5, 1.75 etc, they are not compatible with the numericall equivalent fraction for example 26 x 1.5 tire is NOT the same as a 26 x 1 1/2. Even though 1 1/2 = 1.5
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

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    Senior Member Bill Kapaun's Avatar
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    See if there is a metric designation on the tire besides the 26X1-1/2".
    Something like 584-37 or similar.

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