Bicycle Mechanics - TREK bottom bracket

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VFR1

05-03-05, 05:30 AM

Could someone advise me on the size BB used on a 1997 TREK 7000? Thanks.

StarFangledNut

05-03-05, 06:39 AM

VFR, it all depends on the crankset that you are using on it.

VFR1

05-03-05, 06:53 AM

Thanks for the reply. I have a year 2000 production XT hollowtec crank set I plan to use.

sydney

05-03-05, 07:09 AM

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.

VFR1

05-03-05, 01:24 PM

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.

sydney

05-03-05, 01:44 PM

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.