| Author | Message | ||
     Robertb1958 |
Hello all, Sort of by accident, I happen to have both a '96 S1 and 2000 X1, both relatively stock with minor mods (AFIK). Never have done much to the S1, but I went through a lot of catch up maintenance & small repairs to get the X1 running and riding correctly. The one thing I can't figure out between the two bikes is that the X1 seems to transmit much more vibration to my "parts" than the S1. I just replaced the X1 front motor mount with the "new and improved" one, but I don't think it made any difference. As of right now, I think the S1 rides and handles better even with the WP forks feeling pretty stiff vs the Showas on the X1. The X1 definitely has more power above 4K. I appreciate the lower vibration of the S1, but the twin tail seat on the S1 kills me after a while. Any ideas about why the X1 transmits (a lot) more vibration from 2500-3200 RPM? I think the rear motor mounts on the X1 have not failed. | ||
| Buellistic |
The 96 probably has a 29 tooth counter shaft sprocket and the 00 X1 has a 27 tooth counter shaft sprocket ??? | ||
| Robertb1958 |
Hmmm, never compared speed vs rpm, but the X1 seems to have a good bit more chassis vibration from 2-3K RPM than the S1. I can tool around reasonably at 2500 RPM on the S1 but on the X1. I think the Thunderstorm heads + race map give the X1 a lot more pep in the upper RPM's vs the stock (I think) '96 S1. (Message edited by Robertb1958 on September 22, 2014) | ||
| Hootowl |
Do both bikes have the same rear isolators? Old style vs. new style, I mean. The new ones are a bit stiffer. | ||
| Two_seasons |
Heavier flywheel in the S1. My S2 is way smoother at low RPM than either of my X1's. | ||
| Robertb1958 |
Well, Most posts on BWB indicate that the S1 has the lighter flywheel, as does the X1. I do not know, for sure. Not sure about the rear isolators. They could be different, or worn out on the X1. (Message edited by Robertb1958 on September 22, 2014) | ||
| Phelan |
The S1 has lighter flywheels like the X1. The S2 was the only Buell Motorcycle Company bike with heavy flywheels. Buell Motor Company bikes had the heavy wheels too though. | ||
| Charlies_s1 |
I thought the S1W had a lighter flywheel than the S1? | ||
| Kalali |
I've never ridden an S1 but I don't feel much vibrations on my X1 while keeping the speed around 3K RPMs. I'd get some vibes if I lug the engine by keeping it in too high gear. My guess is your rear isolators are marginal. | ||
| Two_seasons |
Meant to say that I thought the S2 flywheel was heavier. Good to know it actually is heavier than either of my X1's. I don't lug either of them, but below 3K they are not as smooth as the S2 below 3K. | ||
| Al_lighton |
All of the S1 and X1 Lightning, S3, and M2 models between 96 and 99 got the same Lightning Flywheel, which is different than the S2 flywheel. In 2000, the new straight crank pin flywheel got fitted to all S3, X1,and M2 models, and that crank had it's rotational inertia reduced by 14% (per Gary Stippich, published in B2Win volume 3 issue 2). That flywheel is why 2000 bikes got their shocks recalled and 99s didn't. (Message edited by al_lighton on September 23, 2014) | ||
| Hootowl |
"That flywheel is why 2000 bikes got their shocks recalled and 99s didn't." I've always wondered why that was the case. Thanks. |
