Valentino Rossi was impressed by Yamaha's new MotoGP chassis and swingarm during the post-Czech Grand Prix test at Brno, and is now keen to try them in a race weekend.The Italian has favored an M1 based on his 2015 Yamaha so far this year, including over a new frame tried...

Aprilia's MotoGP challenger is primarily losing ground in turn-in and straight line speed compared to its rivals, Alvaro Bautista believes.The Italian manufacturer's RS-GP is its maiden thoroughbred MotoGP bike, last year's machine effectively a production-derived test mule, but only ran for the first time five weeks before the Qatar season...