The problem with that MonoCog on eBay is that (I emailed him) he put 700c wheels on a frame meant for 26" wheels. The existing cantilever studs are useless (although the ad doesn't say so) unless you get some kind of Paul either V or cantilever brakes meant for wheels that are a different size than your frame. He came right out and said through email to me that those brakes were pretty expensive.

Jessica