Originally Posted by
rsanchezsaez
I mean about the new 6 speed double hub. I still don't understand how it works (complete bike newbie here). Pictures would help.
The 6 spd Brompton uses an internally geared 3 spd hub but two external sprockets insead of only 1 as fitted to the 3 spd.
I think the wide steps between each 'speed' on the 6 spd Brompton generally makes only 4 of them really usable as offered by the -12% option. So far my 3spd with the -12% option has never left me wanting more. Top gear is for flats, 2nd for moderate inclines and 1st for the really steep ones.