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Brompton derailleur chain tensioner idler set including fittings                       
Brompton derailleur chain tensioner idler set including fittings                       
Brompton

Replacement chain tensioner idlers + fittings only - For DR Pair

£16.00
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Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Replacement chain tensioner idlers + fittings only - For DR Pair

Brand:Brompton

Code:QCTIDLDRSET

Brompton derailleur wheels

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 to save some money

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)

Brompton Q part code: QCTIDLDRSET

Brompton part number: 9023097  

Sizing Information
Professional Opinion

DERAILLEUR CHAIN TENSIONER IDLERS etc. Prise off the cap on the side of the idler wheel with a small screw-driver. Undo the M4 screw (2.5mm hex key), and remove this screw, with the spindle, idler-wheel and washer. If changing the nut pressed into the moulding, tap it out with a suitable drift, and fit the new one. On reassembly, smear a little grease on the spindle. Also, do not forget to fit the large M4 washer under the spindle. Check that the idler is spinning freely (and moving in/out OK: there should be 7mm of travel).

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