All teams used
series-specified Michelin tyres.
Team changes •
Tech3 switched to KTM machines, ending their twenty-year satellite relationship with Yamaha. As a result of this link-up, Tech3 dropped long-time title sponsor
Monster Energy, replaced by rival
Austrian energy drink
Red Bull. •
Ángel Nieto Team joined forces with
Sepang Racing Team to field two Yamaha YZR-M1 satellite bikes, replacing
Tech3 as Yamaha's satellite team. •
EG 0,0 Marc VDS shut down their MotoGP class operation to make room for
MotoE bikes.
Rider changes •
Francesco Bagnaia was promoted to the MotoGP class, joining
Pramac Racing. He replaced
Danilo Petrucci, who moved to
Ducati factory team, taking over the seat vacated by
Jorge Lorenzo. He joined
Aprilia where he replaced
Scott Redding, who moved to the
British Superbike Championship. 2017 Moto3 champion
Joan Mir took over the seat vacated by Iannone at Suzuki. •
Johann Zarco left Tech3 to join
Red Bull KTM Factory Racing. He replaced
Bradley Smith who switched to the
MotoE World Cup. •
Franco Morbidelli joined
Petronas Yamaha SRT. He was partnered by
Fabio Quartararo. •
Thomas Lüthi stepped back to Moto2 with the Dynavolt Intact GP team. • Having competed in MotoGP since 2010,
Álvaro Bautista switched to the
Superbike World Championship. •
Karel Abraham joined
Reale Avintia Racing after two seasons with
Aspar/Ángel Nieto Team. •
Xavier Simeon switched to the MotoE World Cup while remaining with
Avintia Racing. •
Maverick Viñales changed his race number to 12, replacing the number 25 he had previously used for the majority of his Grand Prix racing career.
Mid-season changes • Because of
two fractured vertebrae sustained in Assen,
Jorge Lorenzo was absent from the German, Czech and Austrian rounds. He was replaced by
Stefan Bradl. •
Mika Kallio replaced
Johann Zarco following his early release by KTM, starting from the Aragon Grand Prix. •
Johann Zarco replaced
Takaaki Nakagami in the Australian, Malaysian and Valencian rounds, following the decision of the Japanese rider to operate on his right shoulder following a trauma sustained during the championship. • Moto2 rider
Iker Lecuona made his MotoGP debut prematurely at the final race of the season, replacing
Miguel Oliveira at
Tech3, who was sidelined following an injury sustained at the Australian Grand Prix. Lecuona was previously signed to race for Tech3 in MotoGP beginning in 2020. ==Rule changes==