| Author | Message | ||
     Northernyankee |
Well I installed this the other night since my clutch started weeping again. I had installed the upgraded factory kit last winter and put about 8000 miles on the bike this summer. The first thing I noticed on the Erik Buell Racing kit besides the plethora of o-rings is how much more it weighs. The stock outer sleeve has a 41mm bore and weighs 46 grams. The Erik Buell Racing outer sleeve has a 37mm bore and weighs 159.7 grams! Install is the same as the stock piece but the tolerances are much closer, I had to tap in the outer sleeve with a piece of PVC pipe and a rubber mallet . The feel at the lever is heavier though still not as heavy as a stock XB, but this is to be expected with the smaller bore. The clutch take-up is further into the stroke, more towards the mid point where as stock was more towards the end of the release. Also the engagement zone is a little wider so it's a little easier to modulate. But it is a very small difference. | ||
| Northernyankee |
 (Message edited by Northernyankee on September 25, 2011) | ||
| Syonyk |
Interesting... that does look like more robust sealing. I'll chat with the tech next weekend when I'm getting service done & see if they think it's worth the upgrade. | ||
| Juniorkirk |
My bet would be they would NOT recommend it since they wont get the money for buying the part. The guys i usually take my bike to to get warranty work done are great guys and love buells, but they are trained in discouraging modifications that CANT be bought from them and installed by them. | ||
| Father_of_an_era |
Do you think this will this work on an 08R Rev A? Mine just started weeping last month. | ||
| Xtreme6669 |
I hate to think that the lever will get stiffer.... | ||
| Xtreme6669 |
Maybe this with a Brembo M/C? | ||
| Sportster_mann |
Father_of_an_era wrote -
According to their website it fits all years 1125Rs - I suspect CRs as well !  | ||
| Sportster_mann |
Father_of_an_era wrote
According to their website it fits all years 1125R models - I would suspect CRs too !  | ||
| Jdugger |
> Maybe this with a Brembo M/C? That's my plan. I'm using the RCS19 on the clutch now, and it's a heavier feel, but I'm also moving more fluid. I'll report when I get it installed -- this weekend or next, for sure. | ||
| Northernyankee |
Yes it works, I have a Rev A cover on mine. | ||
| Northernyankee |
I plan on using a Brembo RCS also, should have mine in a few weeks. | ||
| Xtreme6669 |
If Jdugger noted a heavier lever with the M/C and you got a heavier lever with the new piston kit it may make for a really heavy lever with both. Let us know Jdugger! | ||
| Northernyankee |
I am not sure what version of the RCS Clutch he is using. The 16 may make for a heavy pull but the 19 should be good to go. (Message edited by Northernyankee on September 26, 2011) | ||
| No_rice |
and here i thought the stock lever pull was extremely light. its a one finger lever. | ||
| Jdugger |
I'm using the RSC19. The 16 does not move enough fluid to work (well) for our bikes. It works, but lurches unless on the furthest out lever setting and perfectly bled and makes finding N when the bike is anything less than very hot a real PITA. The RSC19 is adjustable, which is nice. So you can set it for a lighter action with a longer friction zone, or heavier action and shorter zone. Also, I'm using the Suter slipper clutch with a heavier than stock main spring. So, my lever is pretty dang firm, honestly. I need to do some of those squeeze exercises! | ||
| Xtreme6669 |
I did one track day with my bike and my left forearm was worked by the end!! I have since swapped to ASV levers so the pull is more in the strong part of my grip instead of at the end of my finger tips but compared to my buddies RC8 (magura) the lever pull on the 1125 is pretty firm. | ||
| Dnlink |
Just got my kit in the mail today. I have never changed one. I looked through the procedure in the service manual, doesn't look too crazy. Any hints or tips? | ||
| Northernyankee |
Yup it's pretty straight forward... Just take your time and you will be good to go. | ||
| Father_of_an_era |
Sweet! | ||
| Dcmortalcoil |
Guys, the stock m/c is 14mm bore. And it's moving too much fluid, making the engagement zone very small, very close to the release point. A 16mm or 19mm m/c would reduce the engagement zone from the stock. To increase the engagement zone for the stock clutch slave, you will want to use something like 12mm m/c. | ||
| Dcmortalcoil |
Installation tip for stock (not sure about E_B_R's): Be sure to completely wet the sleeve with brake fluid. Align the sleeve correctly. There is a mating notch, which you can see clearly from the photo. I used a large driver socket and a 2x4 wood. You tap the sleeve in with a small sharp bang. If you don't perfectly align the sleeve, there is some chance that you can deform an edge(s), which can create radially-inwardly extending sharp edges that can tear o-rings. If so, take it out and smooth any sharp edges with fine sandpaper or file before you install. | ||
| Northernyankee |
that would be true of a normal M/C but when you switch to a radial the bore will need to increase. | ||
| Jdugger |
> A 16mm or 19mm m/c would reduce the engagement zone from the stock. Theory vs. reality. In theory, you are right. The reality is the RCS16 didn't move nearly enough fluid. So, it was hard to shift. Damn near impossible to find neutral. It lurched when you clicked into gear, even when the lever was set at it's "max". You got lots of friction zone. The RCS19 works great. It's adjustable, and moves enough fluid. The friction zone ranges from about the same as stock to a good bit wider. And, shifts and neutral are normal. On this fact, I am confident. I've been through it. | ||
| Stirz007 |
RCS19 does work great. I had originally set it to max, but then backed it off to maybe mid-setting and got just what I wanted. | ||
| Dnlink |
Ok, I need some technical help. I'm installing my Erik Buell Racing clutch cylinder kit and I have a question. Is the piston sleeve supposed to come with O rings on it? Are you supposed to reuse the old ones? The piston has O rings but the sleeve does not. Oh yea and the f*** hole HD (spit) dealer that supposedly fixed it last time used RTV on my Clutch cover plug instead of an O ring. | ||
| Northernyankee |
Yeah I reused the old o-rings. | ||
| Dnlink |
I put the old ones on it. Went back together easy enough (except for the small chunk out of my pinkie finger). Seems to be working good, clutch pull does seem a little stiffer. But there is much more feel and a bigger fiction zone. Mine was almost like a switch before, on or off. |
