Trimby was an immensely important figure in the MotoGP paddock, owing to his work in making the championship what it is today.
A former racer, Trimby – helped in no small part by his wife Irene - headed a union for grand prix riders in 1982 to help bring about better pay for competitors and improve safety.
In 1986, Trimby founded and headed IRTA, which remains as the official body for race teams in the paddock to ensure they are involved in the decision-making process in MotoGP and are fairly treated.
A stalwart of the paddock, Trimby was in Misano on Friday at the San Marino Grand Prix carrying on as normal.
A statement from MotoGP read: “Mike Trimby has sadly passed away. Founder and CEO of IRTA, and an icon of MotoGP, Trimby will forever be remembered.
“Dorna Sports, and the entire MotoGP family, send their deepest condolences to Mike’s wife Irene, his family, friends, colleagues and loved ones at this most difficult time.
“Mike was one of the most important figures in the history of motorcycle grand prix racing.
“His life, achievements and memory will be celebrated during the remainder of the San Marino Grand Prix as the paddock joins together to honour him.”
Source: Autosport