Knowledgebase/Support for bikes/Spares

Chain

Brompton Web Team
posted this on July 10, 2012, 2:34 PM

All current Brompton bicycles are built with 3/32” width chains.

The chain must have the correct number of links and this will depend on the combination of chainring and sprocket/s as set out below.

Chainwheel

ONE rear sprocket

TWO rear sprockets

54T

12T or 13T

100L

16T/12T, 16T/13T or 15T/13T

102L

50T

12T or 13T

98L

16T/12T, 16T/13T or 15T/13T

100L

 

 

 

 

 

 

44T

12T, 13T, 14T

96L

16T/12T, 16T/13T or 15T/13T

98L

 

 

 

 

 

             

Chains for each of the different gearing options are available as spare parts from authorised dealers. The 3/32” width chains come with a tool free connecting link. As with our other spares and accessories, these are not sold directly from our factory but are available from authorised Brompton dealers either directly from their stock, or by asking them to order the parts.

When fitting a new chain the sprockets must be replaced at the same time

Some earlier Bromptons will have been built with 1/8” chains and sprockets. The combinations of chainwheel and sprocket required are the same as in the table above, but the 1/8” chain must of course be used in combination with 1/8” sprockets only. The tool free connecting link cannot be used with a 1/8” width chain. 

Spares can only be ordered through an authorised Brompton dealer; use our online dealer locator to find your nearest one.

 
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