Libero Liberati won the 1957 MotoGP riders’ championship, racing for Gilera.
Gilera also took the manufacturers’ championship that season.
MotoGP & Bikes
Who won the 1957 MotoGP championship?
Libero Liberati won the 1957 MotoGP championship with Gilera.
Sources
- Paddock curated championship records
- Wikipedia — MotoGP champions
- MotoGP official site