I am 5'5" with what I call "t rex" arms, lol. Brompton reach was too long for me no matter which handlebar or seat position. I had a Dahon Mu Uno and it was too long so I used a swept back bar and that worked okay. My best fit was my Bike Friday pakiT which was sized perfectly for me. BF uses standard ahead stems so you can go as short as you need and you can use any standard handlebar as well. With my pakiT, I used the included straight bar for fast exercise rides but for touring and city commuting I used Soma Sparrow narrow bars to be more upright. Easy to swap. If you have specific BF questions, feel free to DM me - I've owned a couple different ones.