-on the scandium frames the chain stay length is 17.3
this allows for 32/20 magic gearing and 32/18 magic gearing with a half link from my experience.
-we built a new 2012 emd ss last nite that , according to niner still has a 17.3 CSL . however 32/18 was the magic gearing WITHOUT a halflink.
so... niner nust have a misprint (for the EMD at least) as far as CSL. it has to be 17.5 instead of 17.3.
check out what Jenson lists the CSL on their new EMD build
Niner EMD 9 X7 Build Kit Bike '12 > N > Niner | Jenson USA Online Bike Shop
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Thread: FYI on new niner magic gearing