MORECAMBE biker John McGuinness has walked out on the British Superbike championship after a season of disappointments.

The ex-brickie, one of the best road racers in the world, has struggled to re-produce his marvellous Isle of Man TT form on the track.

McGuinness has been frustrated and has regularly made only the fourth of fifth row of the grid.

Even the addition of some 14brp to his AIM Yamaha machine failed to give McGuinness the extra boost he needed to compete.

AIM team owner Alistair Flanagan says: "John is an outstanding road racer but is not hungry enough to compete at BSB level compared to how hungry he was for the road racing at the North West and TT this year.

"Things have moved on to another level from last year's BSB. You must be super fit and willing to push for places and qualify at least in the top 12.

"John was only managing to qualify on fourth or fifth row, and he knew that he wasn't giving the machinery and the team 100 per cent and John informed Steve Mellor of this.

"We are in talks to replace John and will be announcing the rider's replacement forthwith. We wish John every success at his road racing in the future."