I was thinking of converting my current SRAM 3x7 hub to a SRAM Dual Drive 3x9. The local bike shops don't think this is possible as it requires spreading the rear stays out by as much as 2.54 cm to fit it in. Is there any one on the forum that currently has a SRAM Dual Drive on their bike? I would appreciate some tech info and SRAM won't reply to my e-mail either from USA or Europe.
