Bite your tongue! My Dahon folder came with a short-cage Dahon Neos RD mounted forward of the axle (too far forward of the cogs, so too much lateral chain flex), and combined with the worst intended copy of hyperglide ever, just wouldn't shift to the low cog unless adjusted so far that the chain falls between the low cog and spokes (the reason for spoke protector discs). When I upgraded to 2X gearing, I replaced the RD with a mid-cage (GS) Tourney, mostly because it came in a claw mount as my frame lacked a proper RD hanger; What a difference, despite $13 retail price, it's a trooper.

It's amazing what these folders are capable of with the right parts, and racks, such as a rear rack to keep the panniers far enough aft for heel clearance.