| Author | Message | ||
     Outlawtigger |
is there any way, to reduce the effort needed to pull in the clutch lever, on a xb12? thanks | ||
| Rarebird |
What year XB12? I have an 04, and I'd like to upgrade to the latest, reduced pull clutch pieces: Reduced Effort Clutch Kit Kit includes a new clutch spring and inner/outer ramps that significantly reduce clutch lever effort. Original Equipment on '06 Twin Cam-equipped models. 36808-05 Fits '99-'05 Twin Cam-equipped models. Stock on '06 Twin Cam-equipped models. MSRP US $44.95 -but, after posting here some time ago, I've still never heard for certain it will work, nor how much work is involved to install it... | ||
| Al_lighton |
There are a few products out there that will reduce the clutch pull forces. 1) Muller Power clutch- It's a replacement ball ramp assembly with optimized ramps and pull angles. Force reduction in the center of motion is about 40%, more like 10-15% at the ends. I had my doubts about these when they came out, as it is always possible to trade force for displacement, and I figured it would reduce the clutch travel and make finding neutral at traffic lights difficult. While I think there is a small loss of displacement, it isn't significant and the product does work well, all the feedback on the ones we've sold has been positive. you can see it here: http://www.americansportbike.com/shop/cgi-bin/cp-a pp.cgi?usr=51F157363&rnd=4615648&rrc=N&affl=&cip=6 9.160.135.44&act=&aff=&pg=prod&ref=16077&cat=&cats tr= 2) Magura Hydraulic clutch conversion- It consists of a hydraulic master and slave cylinder, but it still uses the ball/ramp mechanism. The slave cylinder is external. By way of the piston area ratios, it reduces force and travel. But since it is a hydraulic mechanism, you don't need to use lever travel up to add cable free play, the "cable" is self adjusting. It minimizes forces by a combination of the force/travel reduction, and also eliminates cable friction. Force at the hand lever due to cable friction is minimal on a new cable, but can be substantial on a 1 year old cable. The hydraulic setup doesn't have increasing cable friction forces over time. It's here: http://www.americansportbike.com/shop/cgi-bin/cp-a pp.cgi?usr=51F157363&rnd=4615648&rrc=N&affl=&cip=6 9.160.135.44&act=&aff=&pg=prod&ref=9154&cat=&catst r= 3) 06 clutch spring- The 06 clutch spring is lighter than the 04-05 clutch spring. There were other tranny changes in 06, and I haven't swapped an 06 spring into an earlier model, so I don't know what the impact is. But I know my 06 Uly clutch pull was a lot lighter than the 05 sitting right next to it. My Uly has a hydraulic clutch on it now, it's like butter with the combination of the two. There is a product out there called an easy pull or some such thing that essentially is just a ball ramp arm extender. It will reduce clutch force, but it also reduces clutch throw by the same amount, it isn't an optimized ball ramp. I can't say I've heard glowing reviews of that product. Al | ||
| Henrik |
I put an '06 Uly clutch spring and a Muller Power Clutch in my S2 and it works just dandy. Clutch is downright "feathery" now  2 considerations: - the Muller arm length allows the bracket holding the clutch cable to rub ever so slightly on the primary cover at almost full clutch pull: Clutch Pictures I don't think it'd ever be the source of a problem, but is worth noting in the interest of complete information - My S2 is still stock and puts - maybe - 55 HP to the rear wheel. I can't vouch for how the lighter clutch spring will stand up to more HP *in my application*, i.e. in a tuber clutch assembly with the spring plate removed. Realistically I should be able to put at least as much power through this set-up as an XB12, but I can't say for sure. Henrik (Message edited by Henrik on November 07, 2006) (Message edited by Henrik on November 07, 2006) | ||
| Reepicheep |
Al... I bet that hydraulic setup keeps a decent amount of water out of the primary as well... |
