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

[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]