Kenny Roberts won the 1978 MotoGP riders’ championship, racing for Yamaha.
The manufacturers’ championship went to Suzuki.
It was one of Kenny Roberts’s 3 MotoGP titles (1978, 1979, 1980).
MotoGP & Bikes
Who won the 1978 MotoGP championship?
Kenny Roberts won the 1978 MotoGP championship with Yamaha.
Sources
- Paddock curated championship records
- Wikipedia — MotoGP champions
- MotoGP official site