Slipper clutch
Author
Discussion

bagpuss 996r

Original Poster:

112 posts

246 months

Wednesday 2nd November 2005
quotequote all
Fitted one of these the other month now when going for it its sorted
however normal riding and town its very odd.It clicks loudly and pulces
at the lever nothing damaging just disconserting and odd.Does anyone
elce have any experiance on this or is it just me ta.

Carrera2

8,352 posts

255 months

Thursday 3rd November 2005
quotequote all
I thought 996r's came with them as standard?

Rawwr

22,722 posts

257 months

Thursday 3rd November 2005
quotequote all
How does a slipper clutch work?

</newbie>

Carrera2

8,352 posts

255 months

Thursday 3rd November 2005
quotequote all
Rawwr said:
How does a slipper clutch work?

</newbie>


There you go: www.sigmaperformance.com/slipperclutch.html have a read.

Rawwr

22,722 posts

257 months

Thursday 3rd November 2005
quotequote all
So, in a nutshell, when the speed of the rear wheel is set to overpower the engine on downchanges that would typically unsettle the bike, it just forces the clutch plates apart?

Carrera2

8,352 posts

255 months

Thursday 3rd November 2005
quotequote all
Rawwr said:
So, in a nutshell, when the speed of the rear wheel is set to overpower the engine on downchanges that would typically unsettle the bike, it just forces the clutch plates apart?


In a nutshell, yes. Great for when you're changing down at speed and the back wheel usually snakes around behind you.

As an aside the new ZX636R gets one as standard which is pretty cool.

sjtscott

4,215 posts

254 months

Thursday 3rd November 2005
quotequote all
Had one on my old Aprilia Falco (same as Mille) you definately need one on a 1000 twin with all the engine braking.
Was interesting as if you changed down while slowing down (ham fisted stlyee) early without proper rev matching it would just keep the same engine note/revs constant until the rear wheel caught up quite a strange feeling to be honest almost a little freewheeling like.
A 600cc inline 4 is positively two stroke like with lack of engine braking (not really but seems like that initially) in comparison to a 1000 twin.

rsvmilly

11,288 posts

264 months

Thursday 3rd November 2005
quotequote all
Are you sure the Falco has one?

My Mille has one. It doesn't see much use, though, since I always blip the throttle on downshifts - whether in car or on 2 wheels. I'm sure it would be a lot more use in the more intense setting of a track.

bagpuss 996r

Original Poster:

112 posts

246 months

Friday 4th November 2005
quotequote all
The milli one is not a slipper clutch it uses vac off engin to pull the clutch in, the one on mine uses 6 steel balls on ramps preloaded by a spring and as the rear wheel slows it drives the balls up the ramp.Thus pushing the plates apart so disconecting drive that is the clicking you feel at the lever. Still feels odd though.Being honest not rearly much use on road like you say more of a track thing.I used to slip the clutch going in anyway so you can back it in but now it just goes in then round. Good job i got it for free with bike at £800 not worth it. Still dont know if they all feel same bar milli.

>> Edited by bagpuss 996r on Friday 4th November 00:20

rsvmilly

11,288 posts

264 months

Friday 4th November 2005
quotequote all
bagpuss 996r said:
The milli one is not a slipper clutch it uses vac off engin to pull the clutch in
Indeed. More of a slipper 'effect' clutch. Habits like matching engine/road speed mean I never use it.

I hate being driven by people who don't do this. I just cringe at their poor clutchwork. My old instructor (bike) always said good clutch control was fundamental to good bike control. Makes the ride for pillions a damn sight better, too.

rsvmilly

11,288 posts

264 months

Friday 4th November 2005
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Bagpuss, got any pics of your 996R? That's the one with carbon bodywork, isn't it?

catso

15,884 posts

290 months

Friday 4th November 2005
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It is my understanding that all ball bearing/ramped style slipper clutches 'click' through the lever when downshifting.

There are some that don't but they use a different system for example the 'Surflex' ones, but otherwise it's normal and 'they all do that sir'

wolf1

3,091 posts

273 months

Friday 4th November 2005
quotequote all
I much prefer the Rekluse cluth on my Husaberg 650. No need for a clutch lever at all.

www.rekluse.co.uk/catalog/index.php

bagpuss 996r

Original Poster:

112 posts

246 months

Friday 4th November 2005
quotequote all
Thanks catso for that. Working on some pics this weekend mines an ex mark griffith team renagade no9 riden by all the team shakey rutter aparantly, got it signed by rutter miss my left b-----k though.

sjtscott

4,215 posts

254 months

Saturday 5th November 2005
quotequote all
rsvmilly said:
Are you sure the Falco has one?

My Mille has one. It doesn't see much use, though, since I always blip the throttle on downshifts - whether in car or on 2 wheels. I'm sure it would be a lot more use in the more intense setting of a track.


Well yes seeing as the engine is the exactly the same only restricted exhausts.. it has the same system

Irrespective of what anyone says it works as a back torque limiter so has the same effect as the ducati one.
As I had said it took some ham fisted un rev matched down changes to trigger the thing.
To be honest if you ride it properly I can't see how you'd ever need a slipper (or similar) system on the road unless ahemmm you are 'making progress' LOL

Anyway I've been shot of my italian irritation for over 18months now. My biggest mistake trying to commute on the thing. Stuff just goes wrong with constant use, don't get me started on clutch slave cylinders.

>> Edited by sjtscott on Saturday 5th November 10:42