used to have them on my bandit, thought they were ok for the money, and seeing as i did 40,000 miles in a year on it, the price to the level of grip was good.
Then my best mate fitted them to his zxr400, the rear delaminated, so was sent back, and replaced, then it did it again, so he went back to michelin macadams, and when mine wore out, i went back to pirelli's.
havn't touched em since and won't again.