I've been swapping freehub bodies and looking for modern (8-9-10 speed) replacements. On ebay and elsewhere I have found more and cheaper Deore models than road group models (105, ultegra). Since road spacing is 130mm and mountain 135mm, is there any reason why I can't use a 8/9 speed mountain freehub body on a road hub? I understand that the wheel will need to be re-dished if a 7 speed freehub is replaced with an 8/9, but other than that and axle length/cones, are there any other possible problems with this?
Thanks in advance and keep spinning.