Geoff Barry was killed during the Killinchy 150 road race, held on the 7.401-mile (11.910-kilometer) Dundrod public road circuit, located north of Belfast in County Antrim, Northern Ireland.
Barry was leading the 1000 cm3 race when he crashed his 750 cm3 Yamaha at Tournagrough, the fast left hander of the circuit before the Hairpin, on the sixth of the eight laps. The previous lap, when challenging Ron Haslam for the lead, Barry had recorded the fastest Killinchy lap of 111.68 mi/h (179.7 km/h). When the accident occurred, Barry had just regained the lead. His machine somersaulted in the air and brushed Haslam's shoulder as it came down. Geoff Barry, flung high into the air and 30 yards down the road, hit an earth bank. He sustained head injuries and was found dead on arrival to Victoria hospital in Belfast.
Less than two months after his death,
George Oates, sidecar pilot and his passenger
John Molyneux were killed during the Ulster Grand Prix, almost at the same spot where Geoff Barry's accident took place.
Geoff Barry was a regular to Ulster races where his most notable success was winning the 1000 cm3 class in the 1976 Ulster Grand Prix at Dundrod, one of his favorite circuits.
32-year-old Geoff Barry was going to leave his work as personnel officer at Rolls-Royce Associates after 16 years to take up a full-time road racing career. His racing career came to a national level when he rode Nottingham butcher Charlie Oakley's 350 AJS and 500 Matchless. He progressed, having the odd ride on John Cooper's Yamsels and Seeleys, riding the works John Player Nortons on a couple of their troubled occasions and in 1977 he was hired to ride with Tony Rutter in the Honda GB endurance team, and to ride alongside Kork Ballington and Stu Avant in Sid Griffiths' team. After a disappointing Isle of Man TT, Barry finished fifth with Rutter in the Nürburgring Coupe d'Endurance race in West Germany, held just six days before his death. Barry was also closely involved as development rider with Barry Hart's Sparton Phoenix project.
Before his last race, Geoff had hoped to compete in the 500 cm3 class on his Sparton bike, but because of oiled plugs he didn't, apologising to the 12,000 fans on the public address system. Barry left a wife, Alice.
Geoff Barry was one of the five Cadwell Conquerer Golden Helmet winners to be killed while holding the title. The other four were
Peter McKinley,
Billie Nelson,
Phil Bosco, all killed in racing accidents and
Ken Redfern, who died in a road accident in 1973. The Helmet was buried with his last winner
Phil Bosco in 1977.