With no other manufacturers competing in the 500cc class the MV Agusta team continued to dominate as Giacomo Agostini won his fifth consecutive 500cc world championship.[1]Kawasaki began to sell the Kawasaki H1R to privateer racing teams.[2] The H1R was the first multi-cylinder two stroke racing motorcycle to be sold commercially.[2] Ginger Molloy rode one of the Kawasakis to a second place finish behind Agostini in the championship.[1]
Life was a bit tougher for Agostini in the 350 class as Kel Carruthers and Renzo Pasolini on Benellis and Rod Gould on a factory Yamaha gave him a battle on more than one occasion.[1] Gould would take the 250 title for Yamaha, battling Carruthers for the entire season.[1] German Dieter Braun would give Suzuki the 125 crown while Derbi mounted Angel Nieto claimed the 50cc class for the second year in a row.
There were six fatalities among the competitors at the Isle of Man TT races, including world championship contender Santiago Herrero, making 1970 the deadliest year in the history of the event.[3][4]
Points were awarded to the top ten finishers in each race. Only the best of six races were counted on 50cc, 125cc, 350cc and 500cc championships, best of seven in 250cc, while in the Sidecars, the best of five races were counted.
^ abcdNoyes, Dennis; Scott, Michael (1999), Motocourse: 50 Years Of Moto Grand Prix, Hazleton Publishing Ltd, ISBN 1-874557-83-7
^ abCathcart, Alan (2019), "Eric Offenstadt's Monocoque Triple", Classic Racer, Mortons Motorcycle Media Group Ltd, ISSN 1470-4463, But for 1970 he decided to take advantage of the arrival of the world's first multi-cylinder two stroke 500 GP customer racer, the Kawasaki H1R triple
^"World's fastest way to die: The most dangerous race on the planet". news.com.au. Retrieved 20 February 2017.
^"Two more deaths take Isle of Man TT Festival toll to five". express.co.uk. Retrieved 20 February 2017.
Büla, Maurice & Schertenleib, Jean-Claude (2001). Continental Circus 1949-2000. Chronosports S.A. ISBN 2-940125-32-5
"The Official MotoGP website". Retrieved 2010-07-06.