Scott Redding starts the Moto2 summer break with a reduced 23-point lead over Pol Espargaro after suffering his worst result of the season at the Sachsenring on Sunday.
Like many riders, Espargaro included, Redding struggling badly with the high wear rate of his rear tyre.
The Englishman's grand prix became a damage limitation exercise as early as lap 2 of 29, with his tyre starting to tyre at mid-distance
The Marc VDS rider hung on to claim seventh place, the only good news for Redding being a last lap pass by Simone Corsi on Espargaro, which put the Pons rider in third.
"What can I say; from lap two or three I was struggling with rear grip from the left hand side of the tyre,” said Redding. “In the right-handers and through the first sector I was catching hand over fist, but when it came to the left-hand corners I had virtually no edge grip on entry or exit.
“From halfway onwards the tyre started to tear, which reduced grip even further and also caused pretty bad chatter.
“I was disappointed not to finish in front of Lüthi and De Angelis, because with Pol only third, a fifth place finish would have seen me go into the summer break with more than a 25 point lead in the championship standings.
“I need to come back strong in Indianapolis, to start the second half of the season in the same way I started the first half."
Team principal Michael Bartholemy, also heavily involved in negotiations to place Redding in MotoGP next year, revealed that the tyre problems were unexpected as well as unsafe.
"We are lucky to leave the Sachsenring with Scott still leading the championship by 23 points after the tyre problems he and Mika [Kallio] experienced today,” said Bartholemy.
“We know tyres are an issue here, especially the left hand side of the rear, but we weren't expecting such a rapid deterioration. During free practice we ran more than one race simulation on the tyres we used today in the race, in very similar conditions, with no problems at all. But then, today, it's like we'd used a completely different tyre.