250cc Grand Prix entries for 1989:
| no. | rider | entrant | bike |
| 1 | Sito Pons ESP | Campsa Honda Team | Honda NSR |
| 2 | Juan Garriga ESP | Ducados Yamaha Team | Yamaha YZR |
| 3 | Jacques Cornu SUI | Team Lucky Strike Elf | Honda NSR |
| 4 | Didier de Radiguès BEL | Aprilia Racing Team | Aprilia-Rotax |
| 18 | Iván Palazzese VEN+ | Aprilia Racing Team | Aprilia-Rotax |
| Marcellino Lucchi ITA* | Aprilia | Aprilia | |
| 5 | Reinhold Roth BRD | HB Römer Team | Honda NSR |
| 6 | Luca Cadalora ITA | Marlboro Yamaha Team Agostini | Yamaha YZR |
| 7 | Jean-Philippe Ruggia FRA | Team Gauloises Blondes Yamaha | Yamaha YZR |
| 8 | Carlos Cardús ESP | Team Repsol Honda | Honda NSR |
| 9 | Masahiro Shimizu JAP | Ajinomoto Honda/HRC | Honda NSR |
| 10 | Carlos Lavado VEN** | FMV | Honda RS |
| 10 | Carlos Lavado VEN*** | Team Rudy Project | Aprilia-Rotax |
| 31 | Fabio Barchitta RSM | Team Rudy Project | Aprilia-Rotax |
| 13 | Loris Reggiani ITA | HB CR1 Racing Team Honda | Honda NSR |
| 14 | Martin Wimmer BRD | Team Hein Gericke | Aprilia-Rotax |
| 55 | Bernard Schick BRD# | Team Hein Gericke | Yamaha TZ |
| 15 | Manfred Herweh BRD | Levior | Yamaha TZ |
| 16 | August Auinger AUT | Hostettler / SPI | Yamaha TZ |
| 17 | Helmut Bradl BRD | HB Rallye Sport Team | Honda NSR |
| 19 | John Kocinski USA* | Team Yamaha | Yamaha YZR |
| 20 | Harald Eckl BRD | Team Uvex Aprilia Telefix | Aprilia-Rotax |
| 21 | Fausto Ricci ITA | Team Italia | Aprilia-Rotax |
| 52 | Alberto Rota ITA# | Team Italia | Aprilia-Rotax |
| 22 | Renzo Colleoni ITA | Team Elit | Aprilia-Rotax |
| 23 | Andreas Preining AUT | SK Vöst | Aprilia-Rotax |
| 24 | Andy Leisner USA | Racing Team Katayama | Honda RS |
| 40 | Daniel Amatriaín ESP# | RTK Lotus Quartz | Honda NSR |
| 25 | Alex Barros BRA | Venemotos Racing Team | Yamaha TZ |
| 26 | Luis Lavado VEN | Venemotos Racing Team | Yamaha TZ |
| 28 | Toshihiko Honma JAP* | Yamaha Racing Team | Yamaha YZR |
| 30 | Alberto Puig ESP | Team Ducados Yamaha Puig | Yamaha TZ |
| 32 | Wilco Zeelenberg NED | Samson Sharp Racing | Honda RS |
| 33 | Gary Cowan NIR | Docshop Wevamed Racing Team | Yamaha TZ |
| 50 | Patrick van den Goorbergh NED# | Docshop Wevamed Racing Team | Yamaha TZ |
| 35 | Stefano Caracchi RSM | Team Ciampini | Honda RS |
| 36 | Jean Foray FRA | St Yrian Motos | Yamaha TZ |
| 38 | Jochen Schmid BRD# | Schwabengarage & Reifenzenter Zürn | Honda RS |
| 39 | Kevin Mitchell ENG | D Gallacher/Bradgate Containers | Yamaha TZ |
| 41 | Jean-François Baldé FRA# | Motul Forza Shoei | Yamaha TZ |
| 43 | Adrien Morillas FRA | Clermont Ferrand | Yamaha TZ |
| 45 | Alain Bronec FRA | Aprilia France | Aprilia-Rotax |
| 46 | Hans Becker BRD# | Nava Racing Team | Seel-Yamaha |
| 51 | Paolo Casoli ITA# | AGV Pileri LM | Honda RS |
| 70 | Maurizio Vitali ITA***# | AGV Pileri LM | Honda RS |
| 56 | Urs Jucker SUI# | Swiss Yamaha Team | Yamaha TZ |
| 57 | Darren Milner AUS | Yamaha TZ | |
| 58 | Tadayuki Okada JAP* | Cabin | Honda NSR |
| 60 | Virginio Ferrari ITA# | Gazzaniga Corse | Gazzaniga |
| 65 | Jim Filice USA* | Edwin | Honda NSR |
| Toshinobu Shiomori JAP* | Yamaha YZR |
* wildcard rider at selected rounds
** one-off ride
*** replacement rider
+ Palazzese died following an accident at Hockenheim
# Schick also raced number 37
# Rota also raced number 54
# Amatriaín also raced number 49
# van den Goorbergh also raced number 48
# Schmid also raced number 41
# Baldé also raced number 44
# Becker also raced number 34
# Casoli also raced numbers 59 and 45
# Vitali also raced numbers 46, 48 and 42
# Jucker also raced number 50
# Ferrari also raced number 46
Bookmark or share this story with: