I joined the Darkside a month or so ago and have been happy so far with one exception.
I've not had the bike up to any high speeds (above 80) until a week or two ago.
Each instance below occurred after rolling onto the throttle while changing lanes (from left lane to middle lane - 3 lane highway) to pass and staying on the throttle (except the 3rd time). I've noticed the significant buffeting with my old tires with the top box on but honestly never got up to high speeds with those tires so never experienced the oscillations as described next. The old rear tirre was severely cupped when I got the bike so it had a pretty good vibration above 80. I decided I'd go darkside when that tire wore out. I have a the Hankook on the back and a brand new PR2 on the front, both are balanced. I'm running 42psi front and back.
[1st time] I took it up to about 110 where I got a pretty good wobble. I believe the oscillations would've continued, if I had continued with the throttle, until the handles bars would've been slapping the tank. I back off, dropped about 20 mph and rolled back into it. I had a significant quartering tail wind. All was fine after I rolled back into it.
[2nd time] I repeated the above but with a significant quartering head wind. The results were the same. I did not roll back into the throttle.
[3rd time] I had a long straight away with a quartering headwind and nothing happened. I was not changing lanes or passing anyone. Smooth as glass.
[4th time] I repeated the above with no wind this afternoon with the same results/oscillations. I did not roll back into the throttle.
I've never touched the preload or spring adjustment(s) at all. I twisted the adjuster today and felt no clicks. I believe I need to clean out and add new fluid as prescribed here (thanks Mellow for the link!):
https://www.st-owners.com/forums/showthread.php?106715
So after I change the pre-load fluid, and before I make any adjustments, any suggestions or comments?
I've not had the bike up to any high speeds (above 80) until a week or two ago.
Each instance below occurred after rolling onto the throttle while changing lanes (from left lane to middle lane - 3 lane highway) to pass and staying on the throttle (except the 3rd time). I've noticed the significant buffeting with my old tires with the top box on but honestly never got up to high speeds with those tires so never experienced the oscillations as described next. The old rear tirre was severely cupped when I got the bike so it had a pretty good vibration above 80. I decided I'd go darkside when that tire wore out. I have a the Hankook on the back and a brand new PR2 on the front, both are balanced. I'm running 42psi front and back.
[1st time] I took it up to about 110 where I got a pretty good wobble. I believe the oscillations would've continued, if I had continued with the throttle, until the handles bars would've been slapping the tank. I back off, dropped about 20 mph and rolled back into it. I had a significant quartering tail wind. All was fine after I rolled back into it.
[2nd time] I repeated the above but with a significant quartering head wind. The results were the same. I did not roll back into the throttle.
[3rd time] I had a long straight away with a quartering headwind and nothing happened. I was not changing lanes or passing anyone. Smooth as glass.
[4th time] I repeated the above with no wind this afternoon with the same results/oscillations. I did not roll back into the throttle.
I've never touched the preload or spring adjustment(s) at all. I twisted the adjuster today and felt no clicks. I believe I need to clean out and add new fluid as prescribed here (thanks Mellow for the link!):
https://www.st-owners.com/forums/showthread.php?106715
So after I change the pre-load fluid, and before I make any adjustments, any suggestions or comments?