I was cleaning up the Bike to get it ready for Spring and noticed a 1/4" (3mm) crack on the tube that extends out for the left roller wheel. Was kind of bummed out about it, but have read lots of comments that this will not affect the structural integrity of the rear triangle, but will only make the bike hard to roll on 3 wheels if the crack ever travels enough to have the wheel fall off.
I did notice that the roller was slightly bent last year, but didn't think it was cracked because the damage was hidden by the hook of the shock cord that came with the rack.
I got me thinking,... has anyone ever changed out a Brompton rear triangle? If so, did you do it yourself or have the local dealer do it? I think I'm going to wait until the skate wheel is unuseable, but just wanted to know for the future.