Former BSB frontrunner Karl Harris got his first taste of the Aprilia RSV4 he will campaign in this year's British Superstock Championship, during a test session at Mallory Park (pictured).

"This is the first time I have been able to let rip on the RSV4 and I was not disappointed - it is an awesome bike!" said the GR Motosport rider. "The chassis is fantastic and lives up to everything I was told, it's easy to change direction and holds a line.

"I doubt it will need much development before it's ready for racing. The power delivery is amazing and took me completely by surprise when you consider that this is essentially a standard road bike.

"It delivers power like a factory superbike and I can't wait to race it!"