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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 06-11-10, 10:43 AM   #1
politicalgeek
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Single Chain Ring to Double?

Probably a stupid question: I have a Shimano 105 FC-1050 crankset w/44T ring on it. Can I pick up a second ring and some longer bolts to make it a double?
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Old 06-11-10, 05:54 PM   #2
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Sure, except you may also need a longer spindle for your bottom bracket if the inner chainring hits the chainstay.
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Old 06-11-10, 07:11 PM   #3
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Good thing I don't have a bottom bracket yet.

Got the crankset off ebay for a 1x9 project and then rethought and figured it would be nice to build this bike up with a wider gear range.
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Old 06-11-10, 11:52 PM   #4
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Sure, go for it. It was a double originally anyway. If you wanted to get freaky, you could get extra-long triple bolts and install two rings and a guard, or a single ring with dual guards, or three identical rings...


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