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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 06-08-06, 08:12 PM   #1
TimJ
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Bottom Bracket- which length spindle?

I'm rebuilding a Trek 930. I pulled out the bb and it's an LP27, 73mm shell, and when I measure the spindle- with a pair of accurate calipers- the length comes out to 114mm. Looking for bb's I see 113 and 115 are standard lengths, but not 114. I'm guessing the 114mm spindle I have is considered 113mm or 115mm for some reason, but I don't know which. Now, on one side of the spindle there's a metal ring that goes around it that says LL113. Can I assume that means 113mm spindle?
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Old 06-08-06, 10:18 PM   #2
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Regardless, either should work fine.
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Old 06-09-06, 10:59 AM   #3
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good point
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Old 06-09-06, 02:37 PM   #4
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If you err on the longoer side you can also slap in a few of the supplied spacers. A few mm either way isn't a lot.
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