Ducati Sporting Club UK > Model Specific - Discussion, Technical Problems and Help > 999 / 749 > Slipper clutch options

[HW]

Originally posted by JPM
Don't forget the tool also for the STM

That's needed just to change plates is it?

[JPM]

To remove the pressure plate, it was mentioned in a thread earlier in the week

[HW]

Originally posted by JPM
To remove the pressure plate, it was mentioned in a thread earlier in the week

So it was ... sorry.

[JPM]

Just found the thread Henry.

http://www.ducatisportingclub.com/xm....php?tid=19539

[HW]

Originally posted by JPM
Just found the thread Henry.

http://www.ducatisportingclub.com/xm....php?tid=19539

Oh right .. ta. I thought you were rapping my knuckles because I had not read your reply from this morning on THIS thread properly .. where you mentioned the pressure plate removal!

[Gizmo]

Originally posted by JPM
Don't forget the tool also for the STM

anyone know how much they are??

[JPM]

Nelly sells the STM's so I guess he would be a good place to start

[HW]

There seems to be a requirement to mess about with the thickness of the STM clutch pack to keep it working correctly. I may be wrong, but that is what I got from it. Also read that on the Sigma site this morning where they describe slipper clutches. I am not sure I would want to be messing about with that at fairly frequent intervals - alright if you use a bike for track use/racing but if you ride on the road and take on holiday it could be an issue. Same with greasing the bearings on the ones that require that.

[HW]

Originally posted by HW
There seems to be a requirement to mess about with the thickness of the STM clutch pack to keep it working correctly. I may be wrong, but that is what I got from it. Also read that on the Sigma site this morning where they describe slipper clutches. I am not sure I would want to be messing about with that at fairly frequent intervals - alright if you use a bike for track use/racing but if you ride on the road and take on holiday it could be an issue. Same with greasing the bearings on the ones that require that.

OK - just been reading on the Sigma site
http://www.sigmaperformance.com/slip...racesetup.html
where it explains about the thickness of the clutch pack and how changing it alters how the clutch behaves. You can either make it so it slips straight away or give yourself some degree of engine breaking so it only slips under extreme circumstances. As the plates wear a bit the total thickness of the pack changes and it can be enough to change the working point of the clutch.

(I think I explained that for myself as much as for anyone else!)

Incidentally .. Sigma have a 48T slipper clutch but it uses the std pressure plate and springs so no special took required. SOunds like a viable option - best of both worlds?

[Edited on 19-5-2005 by HW]

[keefer]

no such thing as a maintenance free slipper clutch yet, unless you have a wet clutch.
I probably strip mine down every month while im using the bike and grease all the parts, if you don't do it regularly there wont be much grease on the parts that need it as it gets flung of by the rotation