I'm shopping around for my first 29er hardtail and I'm looking for one that can be converted to single speed as well as geared. I haven't gotten the SS itch yet but I know it will hit one day and I figure I should be prepared. Can anyone suggest some frames to check out? This will be my primary rig that will get raced and railed. I'm usually around a 19" frame (on 26s), 5'11" w/31" inseam if anyone cares.