Dry Slipper Clutch Comparison, advice Ducabike/STM/CNC/Yoyodyne models attached

[Qomomoko]

2002 Ducati Monster S4 running great! for past 200 miles (a week apx)

It has been over 10k miles since last plates changed.
Moto does not slip and does clank a great amount (not bother me as I wear ear plugs and a helmet usually).

The main reasons for the change are
1) Time is coming for clutch plate change
2) I would love to have a slipper clutch, had it on my 2005 R6 and used it at the track ( I am really a novice at  track days)

I do love good looking moto parts and the attached all look great.
I like the idea that the non spyder clutch spring clutches are more adjustable.

Choosing clutch plates I see matching material is the way to go. Steel plates go with steel basket and such.

Ducabike 6 spring race edition attracts me ( or the race 4 spring) but then I really all the colorful springs (adjustment springs) are not even seen and when I add the cost of a clutch plate kit
I am not too far form something such as a Yoyodyne that I see many of you use.
Looks like I will be spending about $1k in the parts at least....

What is you guy's input? 

[koko64]

I would buy what is local to you for advice and support on set up and tuning the slipper action.

[Qomomoko]

Nothing really local with exception that I have not called the Ducati Dealership.

The other shop said (Enginetech Prix Corporation), I would order and they would install.

So advice form forum still valuable.

[silas]

I just installed the K-bike slippper from Nick @ Black Label Mecchanica. Google their website. It's made in Italy & about $725 complete, incl. Neufren plates and works well- seems to be equal to the $1200 Ducabike slipper clutch setup I had years before w/ spider ring and ball bearings. 

[Qomomoko]

I just installed the K-bike slippper from Nick @ Black Label Mecchanica. Google their website. It's made in Italy & about $725 complete, incl. Neufren plates and works well- seems to be equal to the $1200 Ducabike slipper clutch setup I had years before w/ spider ring and ball bearings. 

Looks great and is adjustable by changing "CAPS" and has 3 sets of CAPS (1.7, 1.85, 2.1), no spyder spring but 6 stainless steel springs.
Includes Aluminum base and organic friction material and steel plates.


Great suggestion!

[koko64]

By local I should have been clear, I mean within your country or time zone. Being able to get advice on the phone in real time is valuable.
Yoyodyne have always impressed me with their products.

I would like to get advice from the mfr and not just a distributor imo.

If I was in the UK I'd go with Sigma for example.

[Qomomoko]

By local I should have been clear, I mean within your country or time zone. Being able to get advice on the phone in real time is valuable.
Yoyodyne have always impressed me with their products.

I would like to get advice from the mfr and not just a distributor imo.

If I was in the UK I'd go with Sigma for example.

jejeje got it. ajaja
Makes sense.

Think Yoyodine are in New Jersey, USA.. will take that into consideration.

[koko64]

  

[Orange16]

If you want one that offers tuning the Ducabike inner spring style is great.  I've not used that K-Bike one.  I personally don't like the spider spring style, but they are very generic these days.

[Qomomoko]

If you want one that offers tuning the Ducabike inner spring style is great.  I've not used that K-Bike one.  I personally don't like the spider spring style, but they are very generic these days.

thanks for feed back.
which version did you get?
Here is a video of a 4 spring Ducabike install video with details.

[Qomomoko]

Hello

I found a pretty useful post on another thread/forum
Below is what the guy said ( hope no rules braking)

Also below is an email from an EVR vendor.

I have a done a tone of research and trying to base it on manufacturer instructions and emails and forums.

I can spend $1k for Ducabike 6 spring slipper (ball/ ramp/ adjustable semi easy) and barnett plates.
$1.5k I can get sintered EVR plates and latest EVER slipper (no ball, can be adjusted but more involved)

Have not found any made in the USA, most in Italy or UK.

My clutch does not look stock but I will open it and see its status this week.

[ducpainter]

I'd avoid the Barnett plates.

[Qomomoko]

Embarrassing, I had forgot I had an STM/EVER on my motorcycle 

The drum appears sealed I really think it does not and has never slipped.
My 2005 R6 had a slipper clutch and it was fun to make it spin up  when hard breaking at track days.

A) when putting it back together I was torquing the spring retainer bolts they felt like the bottomed out at even 5 Nm.
I ended up tighten them by hand untill the spring caps looked compressed like they did before

B) Tang to clutch spacing is way over .6 mm at appx 2.75 mm

C) Clutch stack height is 38.7 mm

D) the clutch plate is stamped EVER and STM and has a # 020MG010

E) 18 plates; Back to front (2 steel/ friction/plate/ friction/plate/friction/plate/friction/plate/friction/plate/friction/plate/friction/plate/friction/plate. No concave.

Pics below

[silas]

this link is the K-bike slipper I just installed, and mentioned. Its non-adjustible. The adjustible one you posted is different. Why spend $1000  + on an identical Ducabike spider spring slippper? The K-bike 6 spring slipper clutch setup from Nick is about $725 complete with plates. I had the Ducabike one before and it appeared identical to the K-bike slipper one I have now, internally.   
My 2c on the slipper clutches:
   -any slipper will wear out faster than a normal clutch- esp. the plates. I sand them down and remove all glazing about 1/2 thru the plates' life typically.
   -All spider spring slippers appear extremely similar internally, but different shaped pressure plates. I've never had the rest of the clutch (like spider springs or the 6 ball bearings) wear out before the plates do. I get about 15-20k miles out of a complete slipper clutch (ridden hard).
   -I typically have a hard time finding neutral with a brand new slipper clutch setup for the 1st 1 or 2 hundred miles. Then its good.


https://www.kbike.it/lang_EN/scheda.php?grupid=4&id=349

[koko64]

I've noticed the K Bike range is competitively priced. Looking for a light basket for a DB4.