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Brompton 98 link replacement chain for 2 or 6 speed Bromptons with a 44 tooth chain ring or 3 speed Brompton with a 50 tooth chain ring.
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Brompton 98 link chain, complete with SRAM powerlink
Originally the Brompton chains with 3/32" width were just for Bromptons fitted with a derailleur (hence the Q part code suffix of DR). Later models (approx 2012 onwards) started using a stepped in rear sprocket on all models.
If you are changing your chain we also recommend changing the sprocket(s) - changing just the chain will result in the chain wearing quicker and the chain may also slip on the old sprocket(s) when under load.
A standard 2 speed (12/16T rear sprockets) or 6 speed (13T/16T rear sprockets) Brompton bike comes with a 50 tooth chainring, if this has been changed to a 44 tooth chainring, then the chain length reduces by 2 from the standard 100 link chain - giving this (98 link) one.
A standard 3 speed Brompton comes with a 13T rear sprocket and 50 tooth front chainring - and uses this 98 Link Chain,
Note: if your chainring is smaller you would need to remove links (e.g. if changed from 50 to 44 you would remove two links)
If your chainring is bigger your would need to add links (e.g. if changed from 50 to 54 teeth you would add two links - giving a chain length of 102 links)
The chain is marked: SRAM PC-10
To remove your old chain you could need a chain tool (it depends upon whether the old chain had a powerlink)
Brompton Q part code: QCHAIN098DR
Old Brompton Q part code: QCHAIN98DR
Brompton part number: 9022038