Originally Posted by
avole
I think you have this wrong. Which handlebars do you have?
Anyway, in the interests of research I'll contact Brompton next week and see what they say.
I'm using a third party bar, there's no flex in it. But the bike was originally an M-Type and I switched that out for an S-stem plus Aberhallo extender to arrive at a similar height bar. I was disappointed to find that flex felt the same. I've ridden many Dahons too. They all flex to some degree, and I found that the amount of flex in a Brompton was comparable to a Dahon Curve. 20" Dahons flex less but since the stem is aluminum in some ways it feels worse/less healthy. Tern Beefed up this aspect of the bike (look at their design) and other Brands have switched (including Dahon on the Curl) to a stem/handlepost that integrates the steerer, which it seems to me is the logical conclusion of folding bike design. Technology like oldy wedge stems are absurd.