Does anyone have experience with sizing of an Origin 8 Uno, particularly with stand over height/clearance? None of my LBS's carry the bike so I may need to do some driving to actually try one out. I'd like to get an idea of how they fit before I start looking for which sizes are in stock. I'm 5'7.5 and figured I'd be a 53 on the Uno, but the geometry chart on their website makes the bikes seem very large.