James Toseland walked away from his first crash since returning to WSB when he lost the front of his factory Yamaha R1.
The former MotoGP man crashed changing direction between turn four and five, but was otherwise satisfied with the progress and lap times of the first morning session up until that point.
Speaking to MCN, he said:
“When I shut the throttle the revs where still high, which caused the rear to lock. That put all the weight onto the front and I was down.
"It was a bit of a surprise because I didn’t feel I was pushing that hard.
"We need to make a change to the electronics to stop the rear locking like this, which is happening when the tyre goes off.”
“Up until then I was setting a good pace and the bike felt good. We’ve still got things to try and things to improve but I did a 1m 35.1s lap in the first morning which isn’t far off my MotoGP time.”
Toseland is now waiting for his number one bike to be repaired before returning on track this afternoon.