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Brompton sprocket / disc set 14T for any 3 spline Sturmey Archer View larger

Brompton SA sprocket set 14T for any 3 spline Sturmey Archer



Running a Brompton / Sturmey Archer rear hub with 14 teeth and worn out the teeth on your rear sprockets?

Then this is the replacement kit for you - unless you have a BWR hub, in which case you need the BWR stack.

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14T Sturmey Archer sprocket set

For hubs with ISO splines (that means you have 3 grooves in the hub and they were normally brown/black in colour, but recent models are silver)

Now in silver with a thinner sprocket and built in spacer

How to remove your existing sprocket

How to install the new sprocket

For this sprocket you need a 3/32" chain in one of the following lengths (depending upon the number of teeth on the front chainwheel):

44 teeth - 96 links - QCHAIN096DR
50 teeth - 98 links - QCHAIN098DR
54 teeth - 100 links - QCHAIN100DR 

Brompton 2021 Q part code: Q101617
Brompton Q part code: QRSPRSTACK-SA3-14
Brompton part number: 9024186 

Tools required:

15mm spanner for wheel removal / installation
Small flat head screwdriver for sprocket (and circlip) removal / installation

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Data sheet

Comm Code87149990