On Fri, Apr 30, 2010 at 11:50 PM, happyriding <happyrid...@yahoo.com> wrote:

> I'm confused again.  I was thinking that wide chainstays require high
> Q cranks.  But if the drop out width is standard, is it just the way
> the chain stay splays out near the BB that determines Q?  Can a frame
> builder make a bike with low Q yet still accept 50mm tires?


My 65 mm (actual, measured with a digital caliper)-tire'd Monocog has a Q of
150. I could get 70 mm tire in that frame. Forget what cranks, but they take
that early design splined bb.



> If so,
> why does Rivendell make all their bikes with high Q?
>

My two customs have Qs of 130; the Sam Hill has a 160 with a modern
splay-armed triple with at least 1 cm of clearance between arms and stays.


-- 
Patrick Moore
Albuquerque, NM
For professional resumes, contact
Patrick Moore, ACRW at resumespecialt...@gmail.com
(505) 227-0523

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