Old S/A 3 speed

Steve Watkin said:

I've got an old Rudge with a Sturmey Archer AW hub gear but the sprocket is
held on by screwing (like a normal fixed sprocket would be) and I can't find
any ref to it on the web.

If it is, you just need a 1/8" chain whip and a gorilla to remove it.

"Zog The Undeniable" <[email hidden]> wrote in message
news:40e9949c.0@entanet...

Quoted message said:

Steve Watkin said:

I've got an old Rudge with a Sturmey Archer AW hub gear but the sprocket

is

Quoted message said:

Quoted message said:

held on by screwing (like a normal fixed sprocket would be) and I can't

find

Quoted message said:

Quoted message said:

any ref to it on the web.

If it is, you just need a 1/8" chain whip and a gorilla to remove it

That makes sense but what does the gorilla hang on to?.

Steve Watkin said:

I've got an old Rudge with a Sturmey Archer AW hub gear but the
sprocket is held on by screwing (like a normal fixed sprocket
would be) and I can't find any ref to it on the web.

Quoted message said:

Every thing that I have found so far refers to a circlip fixing.
Can anyone point me to a site that has the correct information?

Sturmey sprockets are carried on a component called the 'driver'. I know of
three types: the common 3-splined type with a circlip, a rare 12-splined
type with a left-hand threaded lockring, and the threaded model that you
have.

To remove your sprocket, you first need to take the driver out of the hub.
Loosen the locknut for the right hand cone, and remove it. Unscrew the
cone, and the driver will lift off with the sprocket attached. You need to
note the position of the cone, because gear adjusment depends on it being
replaced accurately.

To remove the sprocket from the driver, place the driver prongs-downward
astride a suitable steel bar, and heave on the sprocket with a chain whip.
The driver needs to be well supported, or you may damage it.

Most Sturmey drivers are interchangeable, so you can replace your threaded
one with the more common 3-splined version if you prefer.

Useful sites:

http://www.sheldonbrown.com/gloss_ta-o.html#threaddriver

http://www.toehead.demon.co.uk/aw.htm

http://www.toehead.demon.co.uk/names.htm

http://www.users.globalnet.co.uk/~hadland/samaintind.htm

HTH

James Thomson