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Brompton derailleur gear trigger / bell assembly complete View larger

Brompton derailleur gear trigger / bell assembly complete

QGTRIGDRA

Brompton

Brompton derailleur gear trigger / bell assembly complete - pre-2017 version

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Brompton derailleur gear trigger / bell assembly complete

This 2 speed derailleur trigger was discontinued by Brompton in 2020

An alternative is this 2 speed Sturmey Archer shifter which will also need a new cable and derailleur spring

If you are fitting a new trigger housing, fit it at the same position and orientation as before, to avoid clashing with the front spokes when folded. You may of course choose another position, but:

  • some adjustment of the handlebar nipple may be needed, or 
  • the bell may end up exposed to damage when folded, or 
  • the cable routing may not be satisfactory.


Brompton Q part code: QGTRIGDRA
Brompton part number: 9012213 

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Data sheet

Handlebar Type:P type handlebar