Winfried needs to order a PakiT, from Bike Friday , shipped internationally,
from Eugene, Oregon.

The engineering of how a Brompton folds so well,
demands the chain tensioner, to take up the slack because the hinge point
is behind the BB.

BiFri puts the BB in the rear part that folds, not in the main frame..

& they offer a lot more common component options.. buyer choice..
Even a Di2 electronic shifted Alfine 11..




...


as said before; become a major investor in Brompton and they may listen to you,