S2R Rear Sprocket Removal

[Speeddog]

S2R parts on the top row, 996 SBK on the bottom.

S2R; hub, sprocket, spacer.
SBK; hub, sprocket, shim-washer, snapring, spacer.




S2R hub on the left, SBK on the right.
Notice the 'snout' on the SBK part for the snapring.




S2R spacer on the left, SBK on the right.
S2R spacer is long, to take up the room since it doesn't have the 'snout'.




S2R hub with spacer on the left, SBK hub with spacer on the right.




The entire assemblies are interchangeable.

The cush-drive rubber/sleeve/threaded stud parts are the same.

The looseness of the S2R is due to a little bit of axial clearance, and due to the mating cylindrical parts being rather large diameter and narrow.
An appropriate shim would reduce the axial clearance, and thus the 'wiggle room' too.
It would have to be slightly over 55mm ID x 70mm OD (max) and .005"/.013mm thick.
I don't have a source for the shim...right now.

Looks like Ducati changed configuration to save some money.
The bonus is some looseness. 

Oh, the center hole in the AFAM carrier is about .008" larger than either of the OEM sprockets, so it's going to be even looser.

[Darth Paul]

Thanks a bunch for chiming in chris/speeddog.  I don't wtf I'd do without this forum

Oh and for anyone else attempting this at home, the method I used to keep the rear wheel from moving so I could loosen/tighten the axl nut was to just have my wife step on the rear brake while I worked the wrenches.  On valentine's day too     That's true love.

[mitt]

Ok so I got through most of this today, but now with the new quickchange carrier and the new sprocket it seems a little loose where the cush drives connect to the carrier.  Everything else is torqued to spec.

Instead of trying to describe it poorly, I just made a quick video showing the give.  Is this normal? 

http://www.youtube.com/watch?v=1YSIVvGpUzw

your video wasn't as cool as his

http://www.youtube.com/watch?v=Gv6sW3L_RL0&feature=related

[clubhousemotorsports]

Fyi the fat spacer/ no snap ring came in on the 998. last of that series, made sense to use the parts on the monsters/multi's

[Speeddog]

OK, that's good info.

I've edited my last post to describe it as a 996 SBK, I originally intended to do that, just missed it.