Yes if it's a road bike frame. My BF is set up to pretty much the same dimensions as my tour bike or my old 12 speed Japanese sport tourer, with a 73 degree seat tube angle (eg. orange) However the Brompton has what amounts to a steeper seat tube angle (eg, red) so if you try to lean forward you may feel like you are off balance, with too much weight on your hands and front wheel, and so you have to sit more upright. Sheldon Brown explains it like a person poised to dive. If you want to lean your upper body forward, you have to stick your butt backwards to counterbalance it so you don't fall in the pool. I like the more forward leaning, butt back position.


You can see in these picture how the Brompton seat is pushed forwards:https://www.google.ca/search?q=bromp...Ug-2DTQgemM%3A