Enhance your Brompton bike's drivetrain with the Derailleur Chain Tensioner Idler Set. This essential component ensures smooth operation by maintaining optimal chain tension and reducing friction, contributing to a more efficient and enjoyable ride.TheÊBrompton Derailleur Chain Tensioner Idler Set includes replacement jockey wheels for when the originals have worn out.

This derailleur jockey wheel pack consists of the following items:
Pair of jockey wheels (idlers) for derailleur (2 or 6 speed) Brompton chain tensioners - 10 tooth
Bearings (pair - approx 19mm long with a diameter of 6mm
Fixing nut (approx 30mm long) and bolt (pair)
Washer (pair)
Dust cap (pair)

Tools required:
2.5mm allen key / hex wrench
10mm spanner
small flat head / blade screwdriver

Q101511