Factory BMW rider Troy Corser is baffled by the warm-up lap crash which saw him sit out the wet/dry first Misano World Superbike race last weekend.

The veteran Aussie was flicked over the highside of his S1000RR and he still doesn't know why he crashed, but says he was lucky not to injure his already-damaged shoulder.

"The first race was a disaster because I didn’t even get to start it! I do not know why I highsided, but it happened quickly and without any warning and I hadn’t even got on the gas. It was a good thing I didn’t hurt my shoulder, because that’s the side I fell down on and the last thing I wanted was more injury," said the two-time WSB Champion.

"My bike didn’t feel right in race two and I didn’t know what it was doing in the corners or when I got on the gas. It felt nervous, but I carried on because I knew that the data guys would want me to keep going if I could.

"We’re going to have to sit down and work out what’s happening and find some solutions pretty soon, but there is no reason why we will have these problems in Donington. I am hoping for better things there and getting back to the kind of results we had earlier in the year."