Sam Lowes is banking on the next two races to keep his hopes alive of challenging for the Moto2 world crown after qualifying on pole at Silverstone.

The British rider, who is 44 points behind Johann Zarco and 25 adrift of Alex Rins, accepts that he can ill afford to lose any more ground at the top of the championship.

"For me, it's quite obvious - if I don't make a good race in these next two races then it's quite impossible for me to win the championship. We had two bad races in Germany and Austria but this season at most tracks I've been quite competitive," he said.

"I feel quite relaxed and now is the time that I can't be making any mistakes - we have to get the points. Whatever happens tomorrow I feel quite confident and relaxed; in the dry I feel like I have a good advantage - it's never easy, but I feel like I can make a rhythm. In the rain, so many guys can go fast and it's about being consistent and being there until the end."

Lowes is confident of his prospects at his home round regardless of whether or not it is wet or dry and the Federal Oil Gresini rider has taken confidence from his performance at Brno in the Czech Republic.

"The weekend's been great, I really enjoy this track and in the dry I feel really strong. In the rain this year's been a bit tricky for me at some places but Brno was a really good step because we got on the podium and that was quite a good ride, a solid ride, and that gave me some confidence for this weekend, knowing that the conditions could be quite wet or dry."

Lowes, meanwhile, paid tribute to Cal Crutchlow on his recent MotoGP achievements and also tipped his hat to his brother Alex, who is making his premier class race debut at Silverstone as a replacement in the Monster Yamaha Tech 3 team for the injured Bradley Smith.

"I'd like to say well done to Cal because he got a win and then he's come here and backed it up with a pole position, which is really good for him and for British racing and fans," said Lowes.

Turning his attention to his brother Alex, he added: "I've had a couple of rides on a MotoGP bike and I can tell you this: it is not easy to understand straight away so I think he's done a really good job to be not too far away from the guys. It's the top class for a reason because the level is really high so well done to him, he's done a good job."