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post #1 of 17 (permalink) Old 11-03-2012, 02:51 AM Thread Starter
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school me on aftermarket clutch slaves

Ok I've searched this site and the web for info and applications. I have found brands like TSR and STM.

Between the two there is quite the difference in bore sizes, what should I be looking for? Larger or smaller than stock? I'm running an aftermarket clutch mc but would these work to improve clutch pull if say I was running a stock mc?

Also a question about fitment? I found on the TSR site the one for the RC fits a lot of different Honda's but no listing for the CBR1000.

With the STM unit the only Honda listed is the CBR1000, but I wound up on Carbonpartz and he's slinging a billet slave but claims they fit the RC other Honda's and here is the rub...he claims they fit the '04-'07 CBR1000.

Can anyone clarify the fitment? Also what are your experiences? Good or bad.

Worth the upgrade? Anyone say forget the slave and buck up for the Thorsten cable clutch conversion?

All comments would be appreciated.

One other thing...the TSR is 38mm while the largest STM is 32mm the TSR is at least $150 more than the STM.

I'm not cheap by any means but if the 32mm does just a good of job as the 38mm I don't mind saving $150. Does it?
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post #2 of 17 (permalink) Old 11-03-2012, 05:51 AM
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i know a forum member sold his slave master to a friend on a 2006 cbr1000rr, and I'm trying to buy it off of him to put it on my rc. don't know the brand or any other specifications

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post #3 of 17 (permalink) Old 11-03-2012, 12:21 PM
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Not sure on fitment. My guess the ones you speak of will fit the RC. Contact Simon for the tsr. The feel of this with a good master is like cutting butter with a hot knife.
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post #4 of 17 (permalink) Old 11-03-2012, 01:42 PM
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I have a VTR1000F (Superhawk/Firestorm) which IIRC uses the same master and slave cylinders. A couple of years back, I upgraded both MCs on bike (brake and clutch) to Brembo units from a Ducati Monster 1100 (same as those used on 848/1098/1198) and noted that the clutch action was noticeably lighter while still providing a full range of engagement.

Not sure if this helps but alas, now you know.... (could be a cheaper alternative for you)

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post #5 of 17 (permalink) Old 11-03-2012, 04:08 PM Thread Starter
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Originally Posted by tarmacslider View Post
Not sure on fitment. My guess the ones you speak of will fit the RC. Contact Simon for the tsr. The feel of this with a good master is like cutting butter with a hot knife.
https://www.speedzilla.com/forums/hon...nks-simon.html
The TSR is nice found some online thanks...

Quote:
Originally Posted by mikstr View Post
I have a VTR1000F (Superhawk/Firestorm) which IIRC uses the same master and slave cylinders. A couple of years back, I upgraded both MCs on bike (brake and clutch) to Brembo units from a Ducati Monster 1100 (same as those used on 848/1098/1198) and noted that the clutch action was noticeably lighter while still providing a full range of engagement.

Not sure if this helps but alas, now you know.... (could be a cheaper alternative for you)
No worries already upgraded to aftermarket mc's, but was wanting a new slave to further the ease of the clutch pull.

Could there be the issue of too light? Never heard of that but you never know.
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post #6 of 17 (permalink) Old 11-03-2012, 04:17 PM Thread Starter
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Quote:
Originally Posted by askela View Post
i know a forum member sold his slave master to a friend on a 2006 cbr1000rr, and I'm trying to buy it off of him to put it on my rc. don't know the brand or any other specifications
Sounds like I'm getting close to what I'm asking...

I'm looking at this as an alternative to the TSR unit.

STM Clutch Slave Cylinders - Honda CBR1000RR 04-07 from SportbikeTrackGear.com

Anyone use this unit?
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post #7 of 17 (permalink) Old 11-04-2012, 02:49 AM
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playing with the diameters of the master cylinder and slave is just like playing with the diameters of the sprokets. A bigger master will throw the slave farther but harder to pull the lever. A bigger slave will make it easier to pull the lever but might not have enough travel.
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post #8 of 17 (permalink) Old 11-04-2012, 03:04 AM Thread Starter
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Ok so what you're saying lmpb is that these things are hit and miss? So is changing both at the same time not a good idea?

Would you say...replace the master first, see what's happening first then change up the slave if it's not doing what you were trying to achieve?
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post #9 of 17 (permalink) Old 11-04-2012, 04:10 AM
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I would start with a smaller master cylinder. But when you do this you will lose throw on the disengagment.

If your clutch, now, gets completely disengaged before the lever is pulled all the way to the bar then you can sacrifice some throw for the sake of being easier to pull.

You could figure out using volume equations how much throw difference there will be, or, maybe someone that has changed the ratios before can chime in. That would cut down on the hit and miss factor.

Last edited by lmpb; 11-04-2012 at 04:22 AM.
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post #10 of 17 (permalink) Old 11-04-2012, 04:49 AM Thread Starter
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Good to know thanks...can anyone else add anything?
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post #11 of 17 (permalink) Old 11-04-2012, 06:18 AM
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If its a street bike to light of pull might make it hard to find catch point to start off on hills and such.. On Ducatis the slave is one of the things most people change fairly soon after purchase of bike. The biggest issue is making sure that it pushes enough to engage fully, while still disengaging fully. I had a Duc where customer burned up his clutch(dry over heat easily) it turned out he had put the wrong size slave and it wasn't disengaging the clutch, so it always had pressure on the plates, just enough for them to drag, but not enough for him to notice.
On my RC I have the Brembo billet MC and its a really soft pull, soft enough that I can't imagine wanting it any softer, but its track only so it's just a quick squeeze and done, never any slipping it up hills or in traffic.

You find one that works well post it back on here.
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post #12 of 17 (permalink) Old 01-01-2013, 08:01 PM
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My version as well as the k factory and TSR use a 38mm piston vs the OEM 35mm. The STM or whatever uses s smaller diameter i think and would make for a harder clutch pull. The standard for aftermarket honda clutch slaves since say 1988 is the 38mm version as Honda has used the same slave for that long in some form or another





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post #13 of 17 (permalink) Old 01-02-2013, 07:01 PM
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Quote:
Originally Posted by nobody View Post
Ok I've searched this site and the web for info and applications. I have found brands like TSR and STM.

Between the two there is quite the difference in bore sizes, what should I be looking for? Larger or smaller than stock? I'm running an aftermarket clutch mc but would these work to improve clutch pull if say I was running a stock mc?

Also a question about fitment? I found on the TSR site the one for the RC fits a lot of different Honda's but no listing for the CBR1000.

With the STM unit the only Honda listed is the CBR1000, but I wound up on Carbonpartz and he's slinging a billet slave but claims they fit the RC other Honda's and here is the rub...he claims they fit the '04-'07 CBR1000.

Can anyone clarify the fitment? Also what are your experiences? Good or bad.

Worth the upgrade? Anyone say forget the slave and buck up for the Thorsten cable clutch conversion?

All comments would be appreciated.

One other thing...the TSR is 38mm while the largest STM is 32mm the TSR is at least $150 more than the STM.

I'm not cheap by any means but if the 32mm does just a good of job as the 38mm I don't mind saving $150. Does it?
One major benefit is the material.
billeted metal has a much smoother/denser surface compared to cast/forged etc.
thats why your billeted calipers and masters feel lighter and more progressive(my understanding anyway)

and can't go wrong with TSR
their supplier will also make the same slaves used on the RC212V moto gp bike (it will not be made in taiwan or China by a 12 year old girl,or designed by a Chinese goat farmer)
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post #14 of 17 (permalink) Old 01-02-2013, 07:48 PM
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[QUOTE=nobody;727251]Ok I've searched this site and the web for info and applications.

Worth the upgrade? Anyone say forget the slave and buck up for the Thorsten cable clutch conversion?

All comments would be appreciated.

QUOTE]

Dam, Sorry I missed Your Thread here "nobody"

Because I would have given My 2 cents on the "Thorsten CCC" sooner, LOL...

You still want it? If not, I will not be hurt... LOL (^_-) <wink


Peace Jeff
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post #15 of 17 (permalink) Old 01-02-2013, 10:50 PM Thread Starter
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[quote=RVTMAVERICK;730474]
Quote:
Originally Posted by nobody View Post
Ok I've searched this site and the web for info and applications.

Worth the upgrade? Anyone say forget the slave and buck up for the Thorsten cable clutch conversion?

All comments would be appreciated.

QUOTE]

Dam, Sorry I missed Your Thread here "nobody"

Because I would have given My 2 cents on the "Thorsten CCC" sooner, LOL...

You still want it? If not, I will not be hurt... LOL (^_-) <wink


Peace Jeff
Ya for sure...give me the skinny on the Thorsten CCC please that would be appreciated!
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post #16 of 17 (permalink) Old 01-02-2013, 11:54 PM
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[quote=nobody;730493]
Quote:
Originally Posted by nobody View Post

Ya for sure...give me the skinny on the Thorsten CCC please that would be appreciated!

Yeah sure okay,...1st FWIW: For Me, The OEM clutch pull was not hard at all... I just didn't like how at the lever, there wasn't sh!t for feel...

Also, I wanted something different as well, which is why I wanted the TCCC... by the way>(I bought mine used) I didn't like the "lever & perch" that I got with mine...
So, I contacted Scott here and He hooked me up with a Killer deal on the best CRG Lever & Perch..>= Super Nice set-up and the beside the TCCC be adjustable... so is the CRG Lever & Perch!

Once you get through the >Set-Up< which it is alittle bit of a pia... but once you get it set-up, it Really is Awesome!

So for Me, a side bennifit was, it was ALOT lighter lever pull! But, BEST of All by far is,>>> the FEEL at the Lever is>>> Awesome!

So,.. alot of money you say? You betcha, was\is it worth the money? To Me, definitely, Every dollar...

Lastly, "hyrda. clutch", after my install of the TCCC., I'll Never go back to or with Hyda. clutch again, no way no how.LOL

Peace Jeff
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post #17 of 17 (permalink) Old 01-03-2013, 12:41 AM Thread Starter
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[quote=RVTMAVERICK;730498]
Quote:
Originally Posted by nobody View Post


Yeah sure okay,...1st FWIW: For Me, The OEM clutch pull was not hard at all... I just didn't like how at the lever, there wasn't sh!t for feel...

Also, I wanted something different as well, which is why I wanted the TCCC... by the way>(I bought mine used) I didn't like the "lever & perch" that I got with mine...
So, I contacted Scott here and He hooked me up with a Killer deal on the best CRG Lever & Perch..>= Super Nice set-up and the beside the TCCC be adjustable... so is the CRG Lever & Perch!

Once you get through the >Set-Up< which it is alittle bit of a pia... but once you get it set-up, it Really is Awesome!

So for Me, a side bennifit was, it was ALOT lighter lever pull! But, BEST of All by far is,>>> the FEEL at the Lever is>>> Awesome!

So,.. alot of money you say? You betcha, was\is it worth the money? To Me, definitely, Every dollar...

Lastly, "hyrda. clutch", after my install of the TCCC., I'll Never go back to or with Hyda. clutch again, no way no how.LOL

Peace Jeff
Thanks man...that's the information I was looking for, as for money that's not the issue I want feel and a lighter pull. I found that the pull in stop and go traffic a pain as I used to teach rider training.

We would go out on group rides in the city and the stop and go killed my hands due to carpal tunnel.

Thanks again for the info guys.
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