Yes I realize that. It seems strange to try to save weight with plastic components when the frame would be the place to do it. I worry about the durability of the plastic and the design choices that lead to it. I also see that Bromptons still have cup and cone bearings and the fiddling required to get the rear wheel off cancels out the elegance of the fold IMHO. I'm also looking at the Tern verge x10 as I like the low weight and the reviews say it rides very well. The fold isn't as nice as the Brompton, but it's probably good enough and I can mess around with the gearing as much as I want and change out wheels easily.