Viewed products

Top sellers

Brompton Derailleur gear cable spring set and cable stop View larger

Brompton Derailleur gear cable spring set and cable stop



Replacement Brompton derailleur spring assembly set - pre-2017

More details

We have 4 in stock


More info

Brompton derailleur spring set - pre-2017

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 (give us a ring or email us if you are not sure)

This should be added to the derailleur cable if you are after the complete set which was discontinued in 2017.

This video from Brompton shows how to correctly set up the 2/6 speed derailleur system.

Brompton 2020 Q part code: Q100638
Brompton Q part code: QCTSPGTRIGSET
Brompton part number: 9002795

Previously this was just the spring itself:
Old Brompton Q part code: QGCABSPRSETDR
Old Brompton part number: 9012268

Have a question?

3 Question(s) answered - see below

If your question has not yet been answered here, use the form below to ask something

*(Required - so we can email an answer - we wont show it)
    Answered questions

  • Asked by JP
    on 06/09/2019
    Hi! I'm thinking of making my old T5 into an M2L, will this derailleur be appropriate for the change considering the T5's short wheelbase? Answer:
    This is just the spring - To change from a T5 to a 2 speed you would need a wheel, cables - including spring, chain tensioner and trigger
  • Asked by Steve
    on 29/01/2021
    Hi the spring set on my 2017 M6 is definitely sticky, preventing movement of the chain shifter, any clues?? I think sticking near the cable entry Answer:
    Hi, thanks for the question. The main reason for this sticking is normally as it is dirty, cleaning is generally the best way to over come this.
  • Asked by Martin Broomfield
    on 02/12/2021
    I have a 20011 Brompton model MR6 Z06D. I would like to purchase a Derailleur spring set but I am not sure what what set applies to my Brompton. Could you tell me what cable/spring set applies to my model of Brompton and does this come with instructions. Answer:
    No problem, could you send us a photo of your trigger as the set required is different depending on what trigger is used.

Related items / accessories

Data sheet

Comm Code87149990