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Brompton chain tensioner nut for 3 speed STURMEY ARCHER hub (steel shell) View larger

Brompton chain tensioner nut for 3 speed STURMEY ARCHER (steel shell)

QCTN3-SA[1]

Brompton

Brompton gear indicator / chain tensioner nut for Sturmey Archer steel shell hub (pre-2004)

This is the shorter 16.9mm length nut

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£4.00

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Short Brompton chain tensioner nut

Technical notes:

This is the shorter 16.9mm nut used on old steel shell (2004 and before) hubs - using the SA I gear indicator chain

Current hubs (BSR and BWR) use a 19.5mm nut and use the SA II gear indicator chain

Chain tensioner / gear indicator nut:

(This is the nut with a hole in the side)
Earlier hubs 2004 and before (normally with steel shell) use this nut.
The difference between this and the later alloy shell nut may be small - but it is essential to use the right one. 

Brompton Q part code: QCTN3-SA[1]
Brompton old (pre-2013) Q part code: QCTN3-SA-01
Brompton part number: 9010103

 

Reviews

Grade 
09/06/2015

The right part and a great service

After breaking the chain tensioner nut of my late 1980s Brompton (by over-tightening) I wasn't sure I would be able to find a replacement part. I came across Brilliant Bikes on the net and placed an order with a note about the age of my bike. The part arrived less than 24h later and it fitted perfectly! A hand written note and subsequent email made the experience quite pleasant, so I am writing this review even though I don't normally bother.

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    Brompton chain tensioner nut for 3 speed STURMEY ARCHER (steel shell)

    Brompton chain tensioner nut for 3 speed STURMEY ARCHER (steel shell)

    Brompton gear indicator / chain tensioner nut for Sturmey Archer steel shell hub (pre-2004)

    This is the shorter 16.9mm length nut

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