The Brompton derailleur causes the mechanism to return when the lever is released on a two or six speed Brompton.
This is the set along with dog-leg section and end stop - for pre-2017 derailleur / trigger systems.
This should be added to the derailleur cable if you are after the complete set which was discontinued in 2017.
Brompton Derailleur Spring Set with Cable Stop for Overbar Shifters
Get free ground shipping on all orders over S$50, sent by our trusted courier partner in 3-5 working days. Easy set up. Follow the Quick Start Guide to add your saddle and do some basic checks, and you’ll be ready to cycle away in less than 10 minutes from opening the box.
Brompton is committed to quality; if our products have failed you in any way, please return them and we will either exchange them or give you your money back. If the product is faulty or has arrived damaged, we will reimburse the cost of return postage. Unwanted items may be returned within 28 days at your cost.