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Wheel Size?

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Old 12-07.-2003, 12:41 PM   #1
Wally
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Default Wheel Size?

I cant seem to figure this out?

If a bike comes equiped with 700c wheels can you replace them with 650c? Maybe replace the brake calipers with some that have a longer reach?

I may try to modify an older road bike to a TT bike and if so would like to put the smaller wheels on it.

My suspision is that the frame is manufactured for one size wheel or another.

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Old 12-07.-2003, 01:02 PM   #2
rek
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Wheel sizes generally aren't interchangable for a particular frame. A 700c wheel is somewhat larger than a 650c.

The only place I've seen a wheel size used on a bike not originally designed for it, was a custom-made 650c wheelset built for a mountain bike (which normally takes 26" tyres), so it could use skinny road slicks. This bike had disc brakes, so brake caliper reach etc. was a non-issue.

Depending on how old the bike is, it may have a different sized rim (i.e. neither 700c nor 650c.) Are there any markings on the tyre that's on it right now?
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Old 13-07.-2003, 06:02 AM   #3
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The bike I want to equip with time trial gear is a 3 year old TREK. I kind of fugured that Ill have to stay with 700c wheels that cam on it new.

Thanks for the reply.
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