SA have also launched a new 3 spd fixed hub.
I was once told/read (dont know where) that BMX 20" isnt the same as kids bike/folder 20", so it might be worth a check that they are both compatible with your brakes.
BMX also have loads of spokes and are built to be bombproof. Do you need all that added weight and complexity, given that its for the road. All alloy kids mtb 20" road wheels cost about £15 each from decathlon. I bought one for our trailerbike and its good, but as its built to take a multispeed freewheel, I messed around with the spacing and spoke dishing to accommodate a single sprocket.
I was once told/read (dont know where) that BMX 20" isnt the same as kids bike/folder 20", so it might be worth a check that they are both compatible with your brakes.
BMX also have loads of spokes and are built to be bombproof. Do you need all that added weight and complexity, given that its for the road. All alloy kids mtb 20" road wheels cost about £15 each from decathlon. I bought one for our trailerbike and its good, but as its built to take a multispeed freewheel, I messed around with the spacing and spoke dishing to accommodate a single sprocket.