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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 08-17-11, 01:03 AM   #1
cristobal41
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Shorter cranks

Hi, I will get this bike for my son (http://www.cube.eu/en/kid/kid-260/te...-260-teamline/) . It features this bottom bracket (http://cycle.shimano-eu.com/media/te...9830667768.PDF). Its cranks are too long and I would like to swap them for a 130-140 mm ones. Any solution? Should I change the bottom bracket?
Cannot solve this easily.
Regards.
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Old 08-17-11, 01:32 AM   #2
dabac
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You can get something like these, or you can contact this guy.
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Old 08-17-11, 06:11 AM   #3
pmt
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If you switch to a nice square-taper BB, you can then find lots of cranks in shorter sizes. eBay has tons of them. That's what I did for my kids road bike.
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Old 08-17-11, 11:15 AM   #4
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+1 .. square taper, then you can even get a longer crank arm
re-machined with new threaded holes , put in the arms further in.
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