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Replacing 37-590 tire size?

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Replacing 37-590 tire size?

Old 09-23-08, 10:01 PM
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Incarnadine
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Replacing 37-590 tire size?

Hi everyone, first post, I'm a super newbie when it comes to bikes in general, so go easy if this is a dumb question! I have an old Free Spirit with 37-590 (26 x 1 3/8) tires, would a frame like this possibly accept a more standard 700x23 sizing? I assume, if possible, some modifications would be necessary. One concern is the brake bridge clearance, and clearance in general.

Any suggestions? Is this possible?
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Old 09-23-08, 10:40 PM
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Jeff Wills
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Originally Posted by Incarnadine View Post
Hi everyone, first post, I'm a super newbie when it comes to bikes in general, so go easy if this is a dumb question! I have an old Free Spirit with 37-590 (26 x 1 3/8) tires, would a frame like this possibly accept a more standard 700x23 sizing? I assume, if possible, some modifications would be necessary. One concern is the brake bridge clearance, and clearance in general.

Any suggestions? Is this possible?
Possible? Maybe- borrow a couple wheels and see if they fit. Worth it? Probably not- Free Spirit bikes weren't very good to begin with, so you'll spend more money than the bike is worth no matter what you do. At very least you'll need wheels and brake calipers.
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Old 09-23-08, 11:17 PM
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haha, yeah, I know they're certainly not the greatest bikes ever, but I live in a college town where bike theft is notorious, so I'm not really willing to get anything too great anyways, just something cheap and fun to ride.
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Old 09-24-08, 07:02 AM
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If I were you I would just get a new set of 26 X 1-3/8 tires and ride with a it how it was meant to be ridden... putting any money into this bike would be a fool's errand.
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Old 09-24-08, 08:13 AM
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If you are changing to another wheel size, you would have better luck with a slightly smaller rim, maybe 584 ETRTO/650B which is 26 x 1 1/2 (fractional). That is only 3mm radius difference which is a minimal brake shoe adjustment.

Wheel choices are slightly better than 590. Most bike shops can order you what you would need.
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Old 09-24-08, 04:54 PM
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I'd stay with 37-590 (26 x 1 3/8) tires if at all possible. They're the least expensive tires around, still common, and for a college beater, they'll be fine.

It may be possible to use 700c wheels. Truth be told, a lot of those old roadsters have plenty of clearance. However, it'll probably be a kludge and headache inducing. Really, the only way I'd do this is if I had an old roadster frame without wheels, and some scrap 700c wheels all in the boneyard, that could be added up to make one bike. I wouldn't actually spend money to make something like this.
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