Career
Robb began riding in trials and scrambles during 1950. His first event was a road time-trial riding a 197 cc James. He then competed on Irish grasstracks, winning six national titles and a 25-mile sand race between 1954 and 1956, before turning to short circuits on tarmac and road-racing.
His first road race was at Lurgan Park, outside of Belfast, in 1957 riding a 197 HJH. He was noticed by Belfast sponsor Terry Hill, himself a trials rider, who provided a 173 Move Files and a 250 cc NSU Sportmax for 1957 and 1958 with Robb finishing third in the 1957 Ulster Grand Prix and second in the 1958 race.
In the 1962 season, Robb became one of the first non-Japanese riders hired by the Honda factory racing team He enjoyed his greatest success with Honda, finishing second to his team-mate, Jim Redman, in the 1962 350 world championship.
Towards the end of his competitive riding, Robb established a road-race school in conjunction with former Motor Cycle magazine journalist and retail motorcycle shop owner David Dixon, using Yoshimura-equipped CB250, and CB450 Hondas, with Dixon being the United Kingdom importer and distributor of Yoshimura tuning equipment.