Originally Posted by
jgwilliams
I have a Brompton with a 3-speed hub and I continually find I want more gears as I never seem to have the right one. As they say, though, YMMV. If you live in a very flat area (I don't) then it may be fine. Personally I like my gears close together and always put the closest ratio cassette I can get away with on my road bikes. A Sturmey-Archer three-speed hub has around 33% gear inch differences which is a lot, and I assume the Nexus will be similar.
Check with Glasgow brompton dealer Ben Cooper, he has made new forks and rear sections
to use Alfine 11 speed disc Hubs front and rear
You might like the 6 speed brompton you have a 2 cog half step combined with the BWR hub offers tighter gearing..
2 chainrings can extend the range , too..