rx hub?

[rjb]

Anyone know if this Sturmey sprocket fits an aw hub? Its advertised as fitting an rx hub?
https://www.sjscycles.co.uk/sprockets/s ... ub-hsl993/

[Brucey]

it looks like the standard IGH fitting to me, that fits countless sturmey, shimano and Sachs/Sram hubs

cheers

[rjb]

Called in to sjsc today to pick one up but when I saw it it was obvious it had a larger diameter than the AW hubs. Another standard to confuse us
I suspect the photo on the website is not correct as that one looks like it would fit an AW.

[Brucey]

Called in to sjsc today to pick one up but when I saw it it was obvious it had a larger diameter than the AW hubs. Another standard to confuse us
I suspect the photo on the website is not correct as that one looks like it would fit an AW.

I think you are right. There is a clue in the specifications; the RX series hubs will accept a smallest sprocket of 17T, which does indeed suggest that the mounting (driver) is a larger diameter than on traditional IGHs and not as depicted.

This is Ison's photo of a 17T RX sprocket



which shows a 5cm diameter splined mounting, much larger than the usual IGH fitting, but smaller than the 8s fitting.

cheers

[Brucey]

just to add to this, RX sprockets I have measured are 50.2mm ID.

cheers