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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 05-03-05, 05:30 AM   #1
VFR1
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TREK bottom bracket

Could someone advise me on the size BB used on a 1997 TREK 7000? Thanks.
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Old 05-03-05, 06:39 AM   #2
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VFR, it all depends on the crankset that you are using on it.
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Old 05-03-05, 06:53 AM   #3
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Thanks for the reply. I have a year 2000 production XT hollowtec crank set I plan to use.
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Old 05-03-05, 07:09 AM   #4
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Originally Posted by VFR1
Thanks for the reply. I have a year 2000 production XT hollowtec crank set I plan to use.
The fc-m751 hollowtech uses a 113/118 octalink v2 BB-es70 bottom bracket 68 or 73 shell width.
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Old 05-03-05, 01:24 PM   #5
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Thanks for the help. I have a question on the numbers. If the 68/73 is the BB shell width in mm, what is the 113/118? Thanks again.
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Old 05-03-05, 01:44 PM   #6
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Thanks for the help. I have a question on the numbers. If the 68/73 is the BB shell width in mm, what is the 113/118? Thanks again.
Spindle length. Use the longer with seattubes of 11/4" and greater diameter.
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