Clutch poressure plate and fitting to STM clutch
 

Have a speedymoto clutch pressure plate:

http://secure.speedymoto.com/Merchan...ory_Co de=CPP

also have an STM slipper clutch. The 2 do not seem to be compatible. Any ideas about how to adjust or use shims so that the 2 fits. Seems that the clutch plate is not low enough down in the basket for the springs to acctuate.

One of our fellow Essex members was having problems with a clutch pressure plate - it may be the same thing.

If you turn the plate over and look at the indents that the teeth go into, his were arched rather than square cut. Because of his clutch teeth, the arches were not cut deep enough to engage the plate properly. When he looked at the original plate the cuts were square rather than arched, and this seemed to make all the difference.

Don't know if I've explained that too well, but check your original and bling clutch pressure plates and you might see the same?

I would say the slipper pressure plate doesnt/shouldnt have any teeth on it. :D

Then you'd be wrong Andy.

Try turning one over and looking at it and you'll be surprised.

FWIW i'm running a slipper and a teethed plate on the adivce of Nelly..

no difference at all.

My bucci pressure plate doesnt have teeth on it!:P

In fact it has been known for people to get the teeth part 'turned' off of a pressure plate to fit it to a slipper internals!

That link suplied about speedymoto cleary shows two types of cover, and says, "Instructions are included for easy installation. A throw-out bearing is also included and already installed. SpeedyMoto pressure plates fit all Ducati running stock dry clutches. We also offer a model to fit Ducatis running factory slipper clutches. Contact us for details.

Available in two styles and two anodized finishes, SpeedyMoto pressure plates complement our clutch covers with innovative looks and unsurpassed performance. Our pressure plates:"

The suggestion is, they offer a model to fit ducatis running factory slipper clutches, that says to me the other is not for slipper?

:D

apparantly kukri has got teeth, and shinobi hasnt!

[Edited on 24-5-2006 by andyb]

[Edited on 24-5-2006 by andyb]

Well there you go - maybe that's the problem then!

is that a sorry? :lol:;):lol:

Heh, you wish!

Besides, it appears we were both right ;)

If smilo006 builds his plate stack height right, ie 4-5mm depth down from the edge of the centre hub, i dont think a toothed cover will physically work with it.

Plus if you think what a slipper does, then you really want all rotating parts operating independantly so they slip when the reverse torque is applied.
With the pressure plate toothed to the centre hub this would be two less bits able to slip independantly.

We all know the noises and feeling a slipper makes when its not happy.......

Steve, arnt you running a 748r std slipper? i guess thats why you use a toothed std pressure plate!

[Edited on 24-5-2006 by andyb]

yup i am.

It is toothed and the teeth fit the basket well. Seems that the centre nut holding the clutch in is different on a slipper than on the regular cluch.

Anyone want to buy a little used speedymoto clutch pressure plate or swap for one that fits an STM slipper cluch!!!!!

Thanks for the advice.

my Bucci PP has no teeth - but it does have a friction coating on it!

The pressure plate and the clutch centre need to match, in that the posts need to be the correct length to match the depth of the holes for the springs in the pressure plate. I've recently fitted a Sigma clutch to my bike and it was very noticable how much lower the spring post ends are on the new clutch compared to the old "standard" Ducati slipper clutch that came with the bike (748R). The Ducati pressure plate will certainly NOT work with the Sigma centre, if you were to fit the Ducati pressure plate on the Sigma centre then the springs would be coil-bound before you finished tightening them. Might the same thing apply here with an STM centre and a Speedy-Moto plate?

I know there are two different sized spacers - one for a slipper clutch and one for the standard clutch, the slipper being shorter. How does this affect things?

I'm having a real hassle trying to get hold of the shorter one at the moment for my spare slipper clutch I'm trying to sell!

doesnt that ebayer who sells alot of ex wsbish slippers quote the ducati spacer part number available from all dealers?

Probably - it's getting one that's the problem!

what do you mean by spacer?
The bloke who sells these STM clutches mentions them on some sales, usually the 4 post ramp types but not the 6 post ball and ramp types.

To be honest, I'm not sure as I'm not the one who changes the things over - I get a man in to do those sorts of things ;)

Are you a teacher? those that can, do...................... :lol::lol::lol:;)

Exactly. I just ride the bloody thing!