Chain Tensioner for Brompton Derailleur Rear Pulley (2 Speed or 6 Speed)

Description

• This chain tensioner is for Brompton folding bikes with 2 speed, 6 speed SRAM or 6 speed Sturmey Archer / BWR (Brompton Wide Ratio) gears.
• This can be identified by the fact it has 2 identical looking black jockey wheels where the chain sits in a groove in the jockey wheel
• This works as a chain tensioner (keeping the chain tight when riding and folded) and as part of the Brompton designed derailleur mechanism - by having juckey wheels which can move from side to side to allow the chain to move between the two rear sprockets
• To make your chain tensioner last as longer - keep your chain clean and not over lubricated

London Craftwork Chain Tensioner for Brompton Derailleur Rear Pulley (2 speed or 6 speed)

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