First, thanks for a very interesting thread. I would like to contribute since recently purchasing a Solorock Hunter (16") with IHG 3 speed sram i-3. I previously owned a Citizen Gotham 20" and currently own 2 vintage Bickertons. I was looking for a lightweight compact folding bike - I settled on the Hunter for the 16 inch wheels and 22 lb. weight. I've had this bike for about 2 months now. It is a solid, smooth ride (no flexing in the frame), very comfortable seat, and comes with rear rack and bungee cords. A magnet assembly keeps the bike folded. Two negatives - one I was able to correct. I just could not get comfortable with the stock handlebars - aching shoulders and neck after riding. I was used to the Bickertons where the handlebars can be adjusted precisely to rider's taste. Solved this by buying an M-style Brompton copy. Just that the gear shift numbers are hidden when remounting the shifter. A previously poster mentioned the sliding handlebar grips - this stopped when mounted on the Brompton copy. I think when your hands are in the proper position, there is less likely a chance of this happening.

The second problem does not seem to have a solution and is related to the sram i-3 internal hub. I expected same results as my old Sturmey-Archer 3-speed gear assembly. But there is this annoying faint chatter in third gear - less evident in 2nd, seems non-existent in first. In doing research on this site, it seems this "chatter" is the nature of the beast. Had I known this, I would have picked a derailleur set-up which they offer for a similar price.

I went back to my Bickerton recently, and was surprised at how less comfortable it was compared to the Hunter. I used to think my vintage Bickerton was the most comfortable of all.

Kind regards to all,
Scott.