*Note: We do not have any 47.5cm frames, but we do have them as completes here. It's the most useful, and fun non-derailer'd bicycle (or frame) we can imagine. We named it Roaduno to emphasize that it's for roads. Smoothish paths, no problem if you have the skills for them--like the Homer in that way. The sidepull brakes should tell you it's not a mountain bike. It's as versatile and as customizable as a single-ish speed road bike can be: Fits tires to 46mm (43mm with a fender). Any tire bigger than 40mm requires some deflation to install and remove, but that was no reason to not design in clearance for bigger tires. Braze-ons for racks (and fenders), and of course has a kickstand plate. Rear facing dropouts, for normal 1x1 single speed set-ups, but with an integrated derailer hanger, so you can use chain tensioner and a front derailer to set it up as a 2x or even 3x1. Or use a chain tensioner and leave the front derailer off and just shift by hand when you get to the hill. There's a downtube shifter braze-on on the non-driveside downtube, for easy front derailer set ups. If you plan to set it up as a 1x1 singler, we recommend covering the boss with a Blue Lug Boss cover. Grease it, otherwise it'll be hard to get off after a couple years. Sizes: 47.5, 51 (650B), and 54.5, 58, 61.5, 64 (