well, if we're including minis in the realm of possibility, the nano, IMO, is a low quality bike with a bunch of z-grade parts that get tossed in the trash. so, you end up paying 300 for a frame that's just meh and then you can look forward to spending another 300-400 on new parts (unless you're like me and you have a parts bin the size of a studio apartment).

the respect mini velo is a nice bike. be sure to make a distinction between the original hi-ten version and the new 2.0 full 4130 cromo frame and fork. you might be able to get one of them as a frameset.

that being said, i still think the best mini that was ever available in the US was the sillgey piccolo. wow, what a yummy bike. i think this pic is of a mk1: