100 link Brompton chain
Brompton chain with 100 links (1/2" x 3/32") made by SRAM and complete with PowerLink for easy connection of the chain
This is the chain used on 2-speed, 3-speed, 6-speed and the occasional 1-speed Brompton C Line
We recommend that if changing your chain you also change the sprockets at the same time
Chain compatibility: |
This chain fits the following 16 inch wheel size Brompton models: |
- Standard 6-speed Brompton (SRAM or Sturmey Archer BWR rear hub) - with 50T front chain ring - so standard C Line 6-speed gearing
- 2-speed / urban (12/16T with reduced gearing 50T front chain ring)
- 13T 3-speed with a 54 tooth front chainring
- 14T 3-speed with a 54 tooth front chainring
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) - or purchase a QCHAIN098DR - 98 link chain
If your chainring is bigger your would need a chain with more links (e.g. if changed from 50 to 54 teeth you would need two extra links - giving a chain length of 102 links - QCHAIN102DR - 102 link chain)
This chain is NOT compatible with the following Brompton models: |
- C Line / C Line Electric 4-speed / 12-speed
- P Line / P Line Electric
- G Line / G Line Electric
- T Line / T Line Electric
Tools Required: |
|
For chain Removal: Removal really depends upon how old the chain is and if you plan to try re-using it: Destructive / one time removal for disposal: To remove your old chain and re-install this new one you can use a chain tool such as the CT-3.3 or CT-5 from Park Tool Non-destructive removal: This allows you to re-use the chain but does mean that you already have a chain with a "master link" You will need a pair of master link pliers such as the MLP-1.2 master link pliers from Park Tool For chain Installation: Installing the new chain will be easier as it comes with a SRAM PowerLink (we would still recommend a pair of master link pliers such as the MLP-1.2 pliers from Park Tool |
Brompton chain length summary: |
| Chainring | One Rear Sprocket | Two Rear Sprockets | ||
|---|---|---|---|---|
| 54 tooth | 12 or 13t | 100 Links | 12/16t, 13/16t or 13/15t | 102 Links |
| 50 tooth | 12t or 13t | 98 Links | 12/16t, 13/16t or 13/15t | 100 Links |
| 44 tooth | 12t, 13t or 14t | 96 Links | 12/16t, 13/16t or 13/15t | 98 Links |
We made this video (below) on how to choose the right size chain, remove the existing chain and install a new chain on your Brompton folding bike
Brompton 2020 Q part code: Q100005
Brompton Q part code: QCHAIN100DR
Brompton part number: 9022045
| Brand | Brompton |