Ben Spies, whose 2012 race-day curse has extended to mechanical failures at the last two rounds, saw a promising opening day at Brno interrupted by an afternoon fall.
Fifth in the morning, the Factory Yamaha rider slipped off his preferred bike early in FP2, leaving him to spend the remainder of the session with a less optimum set-up on his spare M1.
Spies finished the afternoon in eighth place, having lapped slower than in the morning, and was classified seventh overall on combined times (+0.588s).
“The second session wasn't great for us, but the first session was really good,” said Spies. “We went out in the afternoon and the bike was working really well but we had an older front tyre from the morning on.
“I just think I might have been pushing a little too hard at that point with the track temperature being a little hotter and we had a small lowside crash.
“Unfortunately the second bike had a very different setting on it which I wasn't comfortable on. It was too far off to really make a step forward. We know the pace is good with the original setting so we'll work on improving that tomorrow.”