He was one of the first non-Japanese riders hired by the 'works' Honda team
Report from BBC Sport.
Former Isle of Man TT and Ulster Grand Prix race winner Tommy Robb has died at the age of 90.
The motorcycle road racer from Northern Ireland joined the Honda factory racing team in 1962, winning his first world championship race in the 250cc class at the Ulster Grand Prix in that year.
He took two further wins at the inaugural Japanese Grand Prix in Tokyo.
Robb was one of the first non-Japanese riders hired by the 'works' Honda team and enjoyed his best successes with that manufacturer, including finishing second to his team-mate, Jim Redman, in the 1962 350cc world championship.
In 1973 he won the Lightweight 125cc TT at the Isle of Man TT riding a Yamaha.
He was also a five-time winner at the North West 200 road races.
A Facebook post from the Robb family said it was "with great sadness that we announce the passing of our father, grandfather and great-grandfather and of course everyone's racing hero Tommy Robb".
"Thank you for all you did for us as a family and all the years of memories not only with us but that you have given across the world of racing with all the fabulous stories told."