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Got this clutch gem

Old 01-17-2019, 05:13 PM
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Got this clutch gem

So at long last I got my oberon clutch slave. It looks really nice but I just wanted to stop the madness of fluid loss due to my old galled bore on the stocker.
I would normally grab an ebay unit but wasn't able to believe they wouldn't be as bad as mine.
Wil try to take some pics of it on.

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Old 01-17-2019, 05:26 PM
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Are you planning on doing a fresh rebuild on the master as well?

when I did my Oberon I decided to Use an ultra low mileage super clean master cylinder I've had for a while out rebuild it with all new parts fluid reservoir to seal got tired of seeing my fluid contaminated and just a few months from whatever was eating itself to death in my old system

use an ultra low mileage super clean master cylinder I've had for a while out rebuilt it with all new parts fluid reservoir to seal got tired of seeing Mike fluid contaminated in just a few months from whatever was eating itself to death in my old system
clean fluid would be black in about 10 weeks of every day riding

Now it’s been months with the all new system and fluid is crystal clear still I’m happy

Last edited by E.Marquez; 01-18-2019 at 06:09 AM.
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Old 01-17-2019, 06:00 PM
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Well, not sure who Mike is but.. hehe.
I was not planning on it but for now will flush the fluid. I do have a master rebuild kit.
You are very good at somehow upping my workload and parts wishlist.
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Old 01-18-2019, 06:13 AM
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Originally Posted by smokinjoe73 View Post
Well, not sure who Mike is but.. hehe.
Arrrg voice to texted again....fixed thanks.

Originally Posted by smokinjoe73 View Post
I was not planning on it but for now will flush the fluid. I do have a master rebuild kit.
You are very good at somehow upping my workload and parts wishlist.
Your very welcome

Do it once, all the way and be done with it..Even better you have what you need on hand.

If your only problem was leaking at the slave, I suppose you could just install and bleed, getting some more miles out of a working master....I just hate having to do work a second time so tend to refresh associated stuff before its needed, but at the same time as the repair parts are installed.
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Old 01-18-2019, 07:08 AM
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What is the difference vs OEM?
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Old 01-18-2019, 08:50 AM
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Originally Posted by bigborer View Post
What is the difference vs OEM?
Not 18 years old
Honda clutch slave cylinder by Oberon Performance.
Designed to improve the efficiency and looks of the original clutch slave cylinder. The enhanced piston diameter reduces the heaviness of the original clutch action and brings much relief to aching arms. The internal piston design, seals and breather hole have been drastically enhanced to prevent leaks and leave a smoother clutch action. CNC machined from 6000 series billet alloy for lightness, strength and eye-catching looks. Seven fantastic colours (inc Orange) to choose from.
And will make you breakfast after date night.....

I brought it to replace a 18 year old one that had some pitting in the bore, that it looked nice, had claims of lighter feel, better seal design, that was icing on the cake.
After using it for a few months now..is it what it claims ?
Well it does not leak....lol..so the U seal design must work...
Light feel? I think so, but its hard to quantify. I can say it makes for very smooth clutch engagements so that and not 18 years old, Im happy with the purchase

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Old 01-23-2019, 09:55 AM
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It appears that the Oberon slave has a 2mm larger bore diameter. This gives it a slightly altered master to slave ratio (2.37:1) vs the OEM of (2.24:1) achieving a slightly broader engagement point. This seams to allow a bit smoother engagement when launching or slipping the clutch. I went a tad further with a VFR800 master as it has a smaller (14mm) bore. The result was a ratio of (2.69:1) makin for even smoother engagement. Coupled with a S.S. line, my clutch is perfect, for me. Plus, it adds some more bling.
P.S. I found out the hard way that the clutch push rod, while dimensionally is the same, it is different at each end. The end that goes into the clutch has a shorter length hardened ball end. The end that goes into the slave has a longer hardened piece apparently to prevent getting damaged by chain lube and debris.
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Old 01-24-2019, 09:05 PM
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So it is in.
I only did a short test but it is noticeably different to what the old stocker felt like.

It seems way smoother, easier pull and slower engagement. (seems like I heard this story somewhere before)

But really it is an improvement and so far I like it a lot.

Thanks again Erik
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Old 01-24-2019, 10:42 PM
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Originally Posted by CaryDG View Post
It appears that the Oberon slave has a 2mm larger bore diameter. This gives it a slightly altered master to slave ratio (2.37:1) vs the OEM of (2.24:1) achieving a slightly broader engagement point. This seams to allow a bit smoother engagement when launching or slipping the clutch. I went a tad further with a VFR800 master as it has a smaller (14mm) bore. The result was a ratio of (2.69:1) makin for even smoother engagement. Coupled with a S.S. line, my clutch is perfect, for me. Plus, it adds some more bling.
P.S. I found out the hard way that the clutch push rod, while dimensionally is the same, it is different at each end. The end that goes into the clutch has a shorter length hardened ball end. The end that goes into the slave has a longer hardened piece apparently to prevent getting damaged by chain lube and debris.
Sounds good to me to change the clutch ratio with a smaller master diameter. With the standard one you have the control only in the last part. What is the original piston diameter in the VTR? Could we go further with, maybe 13mm piston?
Thanks
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Old 01-25-2019, 07:50 AM
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I believe the OEM is 15.87 mm (5/8 in) the VFR is 14mm. I wasn't able to find a 13mm master. With the OEM slave we would arrive at a 2.75:1 ratio. But, there may not be enough lever travel to completely disengage the clutch. Let us know if you locate a 13mm master.
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Old 01-25-2019, 09:19 AM
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Thanks.
Yes, I will try to find a 13mm one.
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Old 01-26-2019, 05:12 PM
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Those who have bought or considering this slave cylinder, and may not have figured out yet that you cannot buy service parts for it .

I went round and round with the company owner and senior tech guy after I bought mine and then tried to order service parts to have on hand.


Oberon has what they call a lifetime warranty and are happy to deal with service if needed though they claim it shouldn’t ever be required

When I pointed out of course that is that’s great but you’re in the United Kingdom, postage shipping times, downtime, turnaround time

We came to an agreement where they will sell me parts, however if anybody besides them that opens up the unit it voids the warranty.

Hard to argue with a lifetime warranty so perhaps it’s not an issue.

I am considering working to become one of their dealers here in the US, but even that they don’t let their dealers service the units no matter where the dealer is. All units go back to the home office for repair if you ever need it.

As I have several stock slave cylinders laying around I’m not overly concerned about it if the Oberon ever springs a leak I’ll pop in a stock one and send the Oberon back to them .




Last edited by E.Marquez; 01-27-2019 at 11:50 AM.
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Old 01-27-2019, 06:15 AM
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Interesting Erik. Now I recall why I keep old but working parts.
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Old 02-04-2019, 10:59 AM
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Oberon installed today, great improvement vs the original one.


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Old 02-04-2019, 11:32 AM
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Wow its a real VTR trend.

See what you started Marquez?
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