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Buell Forum » 1125R Superbike Board » Archive through March 11, 2014 » Accosatto clutch EBR « Previous Next »

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Andros
Posted on Thursday, January 23, 2014 - 07:38 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

On the EBR site it states that you need to buy their clutch actuator kit for the Accossato (16-18) clutch master cylinder to work properly.

Is it possible to get a version where we don't have to buy the actuator kit. I know you can get them in different bores though.

anders
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Andros
Posted on Saturday, January 25, 2014 - 09:39 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Any one?
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Nuts4mc
Posted on Saturday, January 25, 2014 - 10:45 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Andros...the clutch actuator kit (P/N X2086.11AZ for $99.95)is the "rebuild" kit for the SLAVE cylinder down on the engine ( it prevents/repairs the "weep" that was inherent on 2008 models)
EBR may know that the new Accossato MASTER cylinder produces more pressure or produces more travel of the slave cylinder and the "stock" SLAVE cylinder won't work (reliably) without an up grade to the SLAVE cylinder.
On your side of the pond "Oberon" builds a similar "kit" that should work with the Accossato MASTER cylinder.
Oberon products are available from Twin Motorcycles in the Netherlands

http://www.twinmotorcycles.nl/webshop/index.asp?gu id=YXHFSC&cid=10605

hope this helps
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Andros
Posted on Saturday, January 25, 2014 - 03:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thank you. But i have the fixed HD clutch slave, will it work with that? No weep since that was installed.
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Nuts4mc
Posted on Saturday, January 25, 2014 - 07:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

the HD clutch slave may work...the material choice for piston and cylinder are "more" correct...it may have to do with the volume of fluid displaced by the new MASTER cylinder...which could/may be adjusted by the spherical nut...you would have to experiment to get the correct setting...good luck
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Stirz007
Posted on Sunday, January 26, 2014 - 12:41 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Brembo clutch MC is pretty much plug and play, and works fine with stock slave. I have the slave rebuild kit in my parts stash, but have been running stock '08 slave since bike was new, last two years with the Brembo MC. Not sure why the Accossato would require the slave upgrade.
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Andros
Posted on Sunday, January 26, 2014 - 07:43 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Stirz, what diameter piston is in your brembo clutch mc?
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Stirz007
Posted on Sunday, January 26, 2014 - 01:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

RCS 19. It's adjustable at the lever for throw/volume. To be clear, I'm not knocking the Accossato. When I switched to clip-ons, the stock MC just wasn't working, so I upgraded to the Brembo (EBR wasn't carrying the Accossato at that time, otherwise I may have gone that route). In any case, after mounting the Brembo, all I did was adjust to the feel I wanted and have been good to go since. The only caveat is that if you break a lever, you spend quite a bit of coin to replace it, like $200.
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Andros
Posted on Thursday, January 30, 2014 - 12:34 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

So Stirz your clutch master cylinder is 19mm, yes? The Accossato clutch master cylinder that EBR sells is 16mm which requires a different slave cylinder. Why not just get the Accossato 19mm master cylinder? What are the benefits of getting a 16mm and having to replace the slave?

I don't get it?
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Stirz007
Posted on Thursday, January 30, 2014 - 01:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Anders - from the Brembo site (not sure this answers the question, as the 1125 uses an 8 piston caliper):


The RCS system consists of an adjuster that sets the brake lever pivot distance to either 18 or 20 mm, for the perfect feedback between rider and machine: setting the pivot distance to 20 mm makes the braking system more reactive and immediate, while a pivot distance of 18 mm makes it more precisely controllable.
Changing between the two settings is extremely quick: simply adjust the master cylinder pivot distance by turning the adjuster on the front of the guide lever with cam mechanism by 180 using a screwdriver (red indicates 18 mm, black indicates 20 mm). This changes braking power distribution without modifying the pure power of the system itself.
The piston, gaskets and push rod of RCS master cylinders are exactly the same components as those in the master cylinders used by practically all MotoGP and SBK riders, and are manufactured to extremely fine tolerances and ensure very low friction. The lever consists of two main components: the racing lever guide and the folding, forged lever itself.
The RCS radial master cylinder is available in two different versions: 19 and 15. The numbers indicate the diameter of the piston and define the respective applications for the two versions: the 19RCS must be used in a dual disc system with 4-piston non-floating calipers, whereas the 15 RCS may be installed in single or dual disc systems with 4-piston floating calipers.
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Andros
Posted on Thursday, January 30, 2014 - 04:29 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Stirz... Clutch not brakes =)
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Jdugger
Posted on Thursday, January 30, 2014 - 05:18 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

the rcs19 is available in a clutch MC, too. The RCS16 doesn't move enough fluid, don't get that one.
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Stirz007
Posted on Thursday, January 30, 2014 - 06:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Brain fart on my part. These things happen to geriatrics, sorry. I AM running the RCS 19 on the clutch side, though.
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Andros
Posted on Friday, January 31, 2014 - 01:31 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thank you! That answered the question. Will try the 19mm accossato since its a bit cheaper than brembo
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