Brompton Transmission

The stuff which (with your help) drives your Brompton forwards .... Pedals, cranks, chainsets, chains, bottom brackets, chain tensioners and rear sprockets and spacers.

This includes the now famous (as of September 2017) Bottom Bracket (recalled due to a defect affecting up to 0.02% of Bromptons).

Here you can find, chains and chain tensions / derailleurs, pedals, sprocket sets and crank sets / chain rings.