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Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

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Old 05-09-06, 07:31 PM   #1
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how do i find ou what size crank to buy?

i just reciently bent my stock 1 piece crank and im lookin to buy a 3 piece and my ? is is how do i find out what size is rite for it how can i mesure it and or does it matter what size i buy
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Old 05-10-06, 02:20 AM   #2
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As far as I know most 1 piece cranks are not replaceable with 3 piece cranksets and most bikes with 1 piece cranks, unless vintage, aren't worth the price of a good 3 piece crankset. As far as measuring it I don't really know what kind of measurements you're taking about. Crank length is measured from the center of the bottom bracket to the center of the pedal hole. Bottom brackets are sized by their threading, most often English, and their spindle length, which is governed by your choice of cranks. Of course this is all pointless if you can't put a 3 piece crank on your bike. I would recommend taking your bike in to a bike shop and having them figure it out.

Here is an article about one piece cranks.

Also, sentences are your friend. That means capitalization and punctuation. People will be much more likely to help you if your post something easier to read.
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