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Sturmey Archer 15T Sprocket - 3/32 Flat - HSL945

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Questions & Answers (3) Q & A
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Questions & Answers (3)
Can I use this to change my 3 speed Brompton 13T rear sprocket
12 May 2019
I want to change my 13T Brompton sprocket

yes, you can use this.

can I use this on a 6 speed brompton sram hub ?
03 Apr 2019
How thick is it ? I believe the official Brompton 15t SRAM 6 speed sprocket (no longer available) was 3/32 & 2mm thick.

( plus it had shaped teeth to aid changing. So if it this sprocket is 2mm thick, I realise I'd still probably have to see If I can file it to work )

If this SA sprocket is 2mm thick
Hi there,

This sprocket is indeed 2mm thick.

Will this fit a Brompton BWR hub in conjunction with the Brompton 9-spline 12t sprocket? Thanks
29 Dec 2017
Hi there,

No it will not fit as it is a 3 spline sprocket.

You need either SJS Cycles part number : 22347 OR SJS Cycles part number : 13766

Both sprockets need to be replaced when you replace the chain at 100% worn otherwise the chain will slip on them. 6speed models use 13/16t and 2speed use 12/16t.