The Auto Cycle Union has announced the death of Jim Parker aged 74.
A leading administrator in motorcycling, Jim Parker was a long serving Managing Director of ACU Events Limited, the commercial wing of the sport's governing body.
ACU Events Limited is the organisation which runs the racing side of the T.T. races.
Jim Parker was also Chairman and a member of the influential ACU Road Race Committee.
He was also involved in the racing scene in roles such as Clerk of the Course, Race Director or Head of Organisation at British Grand Prix, World Superbike and club events alike.
Current ACU Chairman Brian Higgins has paid tribute to Jim Parker, particularly for his work in the Isle of Man.