Rossi sees the planned cut in capacity as a new challenge

Rossi backed plans to cut engine power by reducing maximum engine capacity to 800cc from 990cc on grounds of safety.

The Italian four-time world champion was speaking ahead of this weekend's British GP at Donington.

"I am quite sure that I will stay with motorbikes when the 800s arrive because I want to stay for longer than one more year," said the 26-year-old.

Safety fears force MotoGP changes

"Maybe it is also better because it's another experience, it's like starting from zero again so it's not so bad.

"I also think it's a clever modification of the rules because if not, maybe the bikes will start to go too fast."

For next year I'm quite OK with Yamaha, but in the future I don't know what happens World champion Valentino Rossi

Rossi has been linked with a move from two wheels to four and a switch to Formula One, but he said he was unlikely to make the move.

"I have a great passion for four wheels, especially rallying, and I started with go-karts when I was a child," he said. "But I think it's very difficult.

"It's completely another world, a lot of work, a lot of pressure. Maybe a long holiday is better."