Hi angustoyou, You are absolutely right about taking foolish/needless risks. ...if I were to ride it, I had a very short (12 miles out) lower speed (50mph max) local ride with a little dirt in mind. Definitely none of my 200+ mile rides with triple digit speeds on dirt, which I guess is a foolish/needless risk too. The cords are only visible at the bottom of the split and there is almost a new tire's worth of rubber above it. I've been going nuts not riding and both my Ossas are down too. It also cooled off and is 88 degrees today... I'll probably not ride it though...probably. preppypyro- Holy crap! 180mph!?? What gearing will you use? You've probably already considered this, but if you have hand guards, take them off. They could do weird things at really high speed. I have had headshake on dirt at 100mph slower than that, and what snowhawk said about loosening your grip is key. I've never had headshake on pavement and that would be way less forgiving at the speeds you're looking for. A damper would be a great idea. Make sure to get some video of this! Actually someone needs to strap a GoPro on snowhawk and turn him loose!