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Old 06-07-2010, 09:13 PM   #16
utahrpm
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So, what about the "new" KTM (I assume Brembo?) slave cylinder?
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Old 06-08-2010, 03:27 AM   #17
1stiski
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Quote:
Originally Posted by utahrpm
So, what about the "new" KTM (I assume Brembo?) slave cylinder?
If u read back afew posts u will see that I toasted the upgraded KTM/magura unit . I'm not aware of a Brembo slave .
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Old 06-17-2010, 10:41 AM   #18
crazybrit
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Quote:
Originally Posted by 1stiski
One thing their site does say, is that they don't use O-rings, but it is a machined U groove seal. I also like that the piston is also sealed from the rest of the unit, this should cut down on the amount of crud in the system that leaks by on the OEM unit (the piston is non sealed from the rest of the unit.)
How does the Evo differ in design?

Quote:
Originally Posted by kennyd
EVO has a 10 year warranty a spare set of seals included. oberon quoted over 50$ for their special seals both are available in orange now! soo 20$ advantage to EVO
I'm confused on this if the Oberon uses a u-groove seal.

What is there to replace "special seals" / wear-item wise on each design?
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Old 06-17-2010, 11:07 AM   #19
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evo non-special oring seals

Quote:
Originally Posted by crazybrit
How does the Evo differ in design?



I'm confused on this if the Oberon uses a u-groove seal.

What is there to replace "special seals" / wear-item wise on each design?
evo uses simple std size o-ring seals and includes 1 free set with the the kit. oberon uses a u-groove or u-pack seal design not so simple and they charge much more and do not supply spares with their kit. evo 10 year warranty. oberon 1 year. orange or black available with evo now! some want the bling! www.alternatecycle.com
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Old 06-17-2010, 11:14 AM   #20
crazybrit
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Quote:
Originally Posted by kennyd
evo uses simple std size o-ring seals and includes 1 free set with the the kit. oberon uses a u-groove or u-pack seal design not so simple and they charge much more and do not supply spares with their kit. evo 10 year warranty. oberon 1 year. orange or black available with evo now! some want the bling! www.alternatecycle.com
Ah, I read u-groove as meaning a seal-less design. I guess this isn't correct. Since I'm on the other side of the pond I'd rather not have to mail order seals from the UK, doubly so if they are $$$
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Old 06-17-2010, 11:33 AM   #21
1stiski
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Can anyone post a pic of the EVO with the piston side showing, both the piston itself and the bore the piston goes into. I'm wondering if the EVO has a similar but better design than the OEM unit. The Oberon my have an upper hand in that catagory.
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Old 06-17-2010, 11:47 AM   #22
kennyd
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piston design

Quote:
Originally Posted by 1stiski
Can anyone post a pic of the EVO with the piston side showing, both the piston itself and the bore the piston goes into. I'm wondering if the EVO has a similar but better design than the OEM unit. The Oberon my have an upper hand in that catagory.
the evo uses 2 orings to support both ends of the longer than stock piston. the stock magura only has 1 oring and is shorter allowing it to cock in the bore .
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Old 06-17-2010, 12:06 PM   #23
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fwiw, we played around with a "u-groove" seal on our slave cylinders and could find no advantages. we did find the o-rings were more durable and much easier to assemble/disassemble (they do not tear like the u-groove ones do if you don't use the proper tools/technique). since ktm riders will go anywhere, there was the possibility of field repairs in the middle of nowhere and we felt the o-rings just made the most sense.
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Old 06-17-2010, 12:45 PM   #24
AdvGa
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My Evo Clutch Slave is working fine and a fine piece of workmanship. Even comes with its own Bleeder Unit which was a nice touch.
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Old 06-18-2010, 10:40 PM   #25
erappaport
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Will the president of Oberon step up and tirelessly provide personal responses to rookie questions?
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Old 06-19-2010, 04:36 AM   #26
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So... I'm at year 4 and 30k on the stock slave. Works fine.

Trick is to drain out the stock mineral oil and replace with a synthetic such as fork oil or ATF. Sintered aluminum will chemically react with mineral oil and oxidize the cylinder bore of the slave when it gets hot. Its the bore's eventual enlargement that tends to cock the piston and lead to it breaking and leaking. Costs less than $10.. no bling factor though it does fix the problem.
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Old 06-19-2010, 05:33 AM   #27
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Quote:
Originally Posted by HWSNBN
So... I'm at year 4 and 30k on the stock slave. Works fine.

Trick is to drain out the stock mineral oil and replace with a synthetic such as fork oil or ATF. Sintered aluminum will chemically react with mineral oil and oxidize the cylinder bore of the slave when it gets hot. Its the bore's eventual enlargement that tends to cock the piston and lead to it breaking and leaking. Costs less than $10.. no bling factor though it does fix the problem.
What weight fork oil are you using/recommending?
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Old 06-19-2010, 06:18 AM   #28
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Quote:
Originally Posted by mookymoo
What weight fork oil are you using/recommending?
I have 3wt. Maxima in mine, just because it was what was on the shelf. A buddy has Mobile 1 ATF in his, feels the same to me though its supposedly more like 7wt. I'm of the opinion that just about any thin synth hydraulic oil will suffice but your results may vary.
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Old 06-20-2010, 01:54 AM   #29
erappaport
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So why do both Brembo and KTM spec mineral oil instead of selling us an expensive branded synthetic?
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Old 06-23-2010, 12:25 PM   #30
BoulderGuy
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30K on my Evoluzione slave cylinder. Works like a charm. Comes with a bleed kit which is handy for brakes as well. I use 5W fork oil which works fine and is what was laying around. Oh, comes with spare O rings as well just in case...
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