Originally Posted by v1nce
It would seem we have quite some 'gearheads' here. Thanks for all that info. Here's another question which may be hard to answer... If i use my 7 Speed S-Ram hub,.. is it feasible (and worthwhile) to mount a double on my Raleigh Twenty folder (short chainstay)...? I would like to have a 'do evertything' range and ratio. I use the Twenty in the city but also intend it for touring with medium load. I am not a super strong rider at all btw. Cheers!
You're not going to get the Sram Spectro 7 low enough as one with a tripple or 20 inches. Email Sram and find out the technical aspects of that hub before you exceed it's limits and destroy the internals.