I ended up buying a 2006 GT Nomad Ltd for $125.00. I need to switch out the seat post, cassette, and stem. Does anyone know what size the handlebar diameter is from the factory? Bikepedia and even the GT website only show "GT comfort 30 mm rise" which doesn't help. Also, the cassette is crappy Sunrace, which seems incorrect with Deore front and rear derailleurs. Does anyone know if this is a freewheel or a cassette? Any help will be much appreciated.