If you're talking an old 3-speed Sturmey-Archer AW, I would stay far, far away. Under 'normal' road conditions, the innards were known to wear and make them even more susceptible to non-perfect cable tension. Incorrect cable tension led to 'false-neutrals' between the gears - - usually at the most inopportune times (to the tune of much knee-banging, nut-busting and swearing boys who then got their mouths washed out with soap by their mothers).
There are modern IGHs that could prove worthy, have proper mountain bike hub-spacing (135mm) and even have disc brake mounts: Sturmey Archer XRK-8 (now made by SunRace in Taiwan) and a new disc brake Shimano Alfine. I think Dannihilator is messing around with an Alfine on his bike right now and finding it working well. Maybe he'll see this and enlighten us more.
Originally Posted by Mark Twain
"Don't argue with stupid people; they will drag you down to their level and then beat you with experience."
Last edited by dminor; 07-15-10 at 10:53 AM.