The jockey wheels on the chain tensioner are made of a durable nylon material.
Over time these will wear and could help cause the chain to slip when under load.
It is common to replace the complete chain tensioner assembly - but it's possible to replace just the jockey wheels and associated components.
Suitable for 2 or 6-speed drivetrains on Brompton fold bikes.
|Product Name:||Brompton Chain Tensioner Set for 2 or 6-speed|
|usage bikesport:||City, Folding Bike|
|rear derailleur accessories:||Jockey Wheels|
|manufacturer item code:||Q101511|