I had them on my Zed as well. They handled nicely, they turn in better than my Bridgestone BT20s. Alot of guys use them on the ZZR1200 with the 49/46 combo. Most like the wet weather grip as well. I perfered the wet grip of the BT20s better but might be a mind game. If you miss the tire sale on ZZR1200.net (he has 190s also) you can go to tireexpress they have them for $127+shipping I got 10000 miles out of the 46 on the Zed, the busa is going to eat whatever tire you put on it unless you back away from the throttle, Yea right!!