Rotor rex 3 crank and bb assembly

Discuss light weight issues concerning mountain bikes & parts.

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devinci
Posts: 3039
Joined: Sat Jan 03, 2009 9:43 pm
Location: Canada

by devinci

I have this rotor rex 3 crank that i will need to move between a bb92 frame with a pressfit shimano bb and a frame with a 73mm wide bb with external cup bearings. The crank comes with 2 spacers and 3 orings. My understanding is i need all spacers and orings for the external cup bb. Do i need them also for the pressfit shimano bb on the bb92 frame?

Thanks for your help weenies as always

simoncx
Posts: 99
Joined: Sun Nov 15, 2009 12:27 am

by simoncx

I think it's the same on both if I remember right

by Weenie


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kx_1
Posts: 190
Joined: Thu Aug 23, 2007 6:52 pm
Location: Athens/Greece

by kx_1

This is a rex3.2 or a Rex 3.3??? Normally must come with 4 spacers, and 3 o-rings. And you are using 2 spacers and the 3 o-rings. The spacer size depends if it is double or triple..
My Builds so far... C50,EPS Erik Zabel, C59 Di2.

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devinci
Posts: 3039
Joined: Sat Jan 03, 2009 9:43 pm
Location: Canada

by devinci

I have a 3.3. It's mounted on a P2M single ring. It came with 2 spacers which are 10mm thick judging by eyes.

I installed it on my BSA frame using both spacers. Wondering if its the same for the bb92...

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