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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 09-27-09, 11:08 PM   #1
Mr. Moore
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wheel question....

I recently picked up and old 10 speed mountain bike, and I was wondering if I can swap the rear 5 speed wheel for one with an 8 speed cassette leaving the front cranks and double chinrings? I will be swapping the short cage derailier for a long cage. Will this work without any major problems?..I have also already checked and the frame spacing is fine for it... Thanks for any input...
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Old 09-27-09, 11:35 PM   #2
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5 speed is a freewheel. And assuming it's not uniglide the max you should try sticking on their is a 7 speed freewheel. Even though you will most likely need to space out the drive side for the small cogs to clear the frame.

8 speed freewheels are available but you risk axle breakage much more than the 5/6/7 in addition to availability problems in real bike shops. This weakness will be multiplied

a) the heavier you are
b) the rougher you ride the bike
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Old 09-27-09, 11:56 PM   #3
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I am swapping the entire wheel not just the cassette. I have another set of wheels from another bike that I was wanting to use without having to swap out BB and cranks..
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Old 09-28-09, 02:17 AM   #4
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mostly I am worried about chainlines causing skipping
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Old 09-28-09, 06:21 AM   #5
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mostly I am worried about chainlines causing skipping
I'm thinking brake alignment is more likely to be a problem.
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Old 09-28-09, 10:33 AM   #6
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I have already test fit the wheels and the breaks work fine with the wheels....I guess I will just try it and see
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