Author Topic: Slipper clutch (Read 3510 times)

Doch80 · « **on:** January 30, 2006, 03:20:01 AM »

Can someone explain to me what "slipper clutch" is? They've been using that phrase quite often in the magizines lately while I thought most bikes already had them... except maybe Ducati. They talk like it's a race thing and it's pretty new. Maybe not new but elite.

It's not really important but I don't want to look like an arsh if someone mentions it in passing and I say something really stupid...

Thanks!

Chad

mike · « **Reply #1 on:** January 30, 2006, 09:37:23 AM »

They're those little cups with built in straws that toddlers use to drink out of... OH! wait, you said "Slipper clutch", not "Sipper Cup"... ;) sorry , my bad...

Naw, seriously slipper clutches are racing clutches; inlines don't really need them... The big V-Twin sportbikes like Ducatis have a nasty downshift at high rpm's going into corners, the torque makes the rear end do some squirrelly thangs... Slipper clutches just take the edge off the transition is all-makes the downshift smoother feeling by the seat of the pants when entering a corner at high speed while using engine braking.... doubt you'd ever need it for the street unless running around making noise at high rpm's is your thing on a V-twin sport...

Bob Holland · « **Reply #2 on:** January 30, 2006, 11:07:29 AM »

Slidder Clutch
The clutch releases when the engine R.P.M. drops below stall speed. If your throttle sticks open, you can not disengage the clutch.
Turning off the ignition switch is the only way you can disengage clutch if the throttle sticks open.
The bike will free wheel when the R.P.M. drops below stall speed, so you can not use the engine to assist the brakes in slowing the bike.
Any mechanical frictional hang-up would prevent the clutch plates from disengaging.
Make sure the transmission is in neutral before starting the engine.
Make sure that you can reach ignition kill switch without removing hands from controls. ( From Schnitz Racings Web Site)
It is like a stall converter for a car. It is set to engage at a pre-set rpm.
For example, you are setting at the line holding 3000 rpms, when you increase the throttle, the clutches engage, when you drop below pre-set, the clutch disengage.

PitterB4 · « **Reply #3 on:** January 30, 2006, 11:11:37 AM »

I'm not sure about the 06 lineups but the only bike I'm aware of that comes from the factory with a slipper clutch is the Kawi 636R beginning in '05.

Doch80 · « **Reply #4 on:** January 30, 2006, 12:51:07 PM »

It all makes sense now. Thanks all!

ttewejnodnarb · « **Reply #5 on:** January 30, 2006, 01:23:49 PM »

Ducati calls it a slipper clutch...the new GSXR1000 has what is refered to as "Back-torque limiting clutch" which, if I'm correct, is a means to the same end. All of the systems are variations on the same theme of limiting or eliminating rear wheel hop when downshifting at aggressive rpm's. As stated above this would only be utilized in track or extreme street conditions...

At least that is what I make of it

FreediverGa · « **Reply #6 on:** January 30, 2006, 06:06:44 PM »

2006 R6 have slipper clutch aswell now!

gsxr400 racer · « **Reply #7 on:** February 19, 2006, 08:57:22 PM »

ALL SO THE REAR WHEEL DOESNT LOCK UP ON DOWNSHIFTS LETS YA GET INTO THE CORNER FASTER WIT5H OUT REAR END CHATTER!

MikeD2001 · « **Reply #8 on:** February 20, 2006, 10:37:17 PM »

I think my buddy was talking about that the other day... he's got an '05 R1. I said, "that's great, but where was that slipper when you went into that ditch last summer?" He said he lost track of it when he hit gravel