Sram XX crank Q factor - 156 or 166 for Sworks Stumpy?

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Sram XX crank Q factor - 156 or 166 for Sworks Stumpy?

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VTBike

Post subject: Sram XX crank Q factor - 156 or 166 for Sworks Stumpy?

Posted: Sat Apr 28, 2012 3:45 am

Joined: Mon May 16, 2011 8:14 pm
Posts: 281

I have a 2006 Sworks Stumpjumper (dual suspension, 120mm travel); and want to slap on some XX 2x10 cranks. Not sure about the q factor sizing though. Is there a size that fits or does not fit? How do I figure that out?

Thanks for the help

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socratease

Post subject: Re: Sram XX crank Q factor - 156 or 166 for Sworks Stumpy?

Posted: Sat Apr 28, 2012 3:54 am

Joined: Thu Oct 13, 2011 5:25 pm
Posts: 145

Almost all full squish bikes will require the wider ones. Sram has measuring instructions, however, if you want to try and get the narrow ones.

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tonytourist

Post subject: Re: Sram XX crank Q factor - 156 or 166 for Sworks Stumpy?

Posted: Sat Apr 28, 2012 7:45 am

Joined: Sat Oct 10, 2009 7:13 am
Posts: 745
Location: 93306

I ran a 166 on my 08, chainring clearance with a 39/26 was close to the chainstay, a 42/28 would not have worked.
Good luck! :thumbup:

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VTBike

Post subject: Re: Sram XX crank Q factor - 156 or 166 for Sworks Stumpy?

Posted: Sat Apr 28, 2012 1:20 pm

Joined: Mon May 16, 2011 8:14 pm
Posts: 281

Thanks guys, perfect info.

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dynaserve

Post subject: Re: Sram XX crank Q factor - 156 or 166 for Sworks Stumpy?

Posted: Sat Apr 28, 2012 9:43 pm

Joined: Fri Jul 18, 2008 8:25 pm
Posts: 198
Location: UK

The 156 should fit (it fit my epic), but the heel clearance will be to low and you will probably catch the rear stays.

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