"LANCASHIRE Locomotive" Jason Queally pedalled to more disappointment in the United States overnight in his quest to smash the land speed record for human-powered vehicles.

Olympic gold medallist Jason, from Whittle-le-Woods, near Chorley, admitted his bike was probably too big for a successful glory bid in the Nevada Desert.

He touched 63mph on his latest run -- 15 mph short of his target.

Canadian Sam Whittingham set a new mark on Thursday when he clocked in at 77mph on his bike on the designated six-mile stretch of road at Battle Mountain.

Jason has peaked at 66mph during a week when he has been plagued by technical problems.

Engineers had to work on a speed wobble which caused his £140,000 Blueyonder Challenger bike to shudder at speeds over 44mph.

Jason rode to fame when he scooped Great Britain's first gold in last year's Sydney Olympics.