Après de nombreux transferts et de changements entre MotoGP et Superbike, la liste des engagès en MotoGP pour l'année 2006 commence à se profilée, en voici la constitution pour le moment (liste provisoire).

MotoGP
Num	Pilote			Nat.	Ecurie			Moteur
5	Colin Edwards				Camel Yamaha Team			Yamaha
6	Makoto Tamada				Konica Minolta Honda			Honda
10	Kenny Roberts Jr				Team Roberts			KR211V
15	Sete Gibernau				Ducati Malboror Team			Ducati
17	Randy de Puniet				Kawasaki Racing Team			Kawasaki
21	John Hopkins				Team Suzuki MotoGP			Suzuki
24	Toni Elias				Fortuna Honda			Honda
25	Toni Perez				WCM			Bimota
26	Dani Pedrosa				Repsol Honda			Honda
27	Casey Stoner				Honda LCR			Honda
30	Jose Luis Cardoso				D'antin Pramac			Ducati
33	Marco Melandri				Fortuna Honda			Honda
46	Valentino Rossi				Camel Yamaha Team			Yamaha
56	Shinya Nakano				Kawasaki Racing Team			Kawasaki
65	Loris Capirossi				Ducati Malboro team			Ducati
66	Alex Hofmann				D'antin Pramac			Ducati
69	Nicky Hayden				Repsol Honda			Honda
71	Chris Vermeulen				Team Suzuki MotoGP			Suzuki
77	James Ellison				Tech3 Yamaha			Yamaha
99	Jeremy Mc williams				WCM			Bimota

250cc
Num	Pilote			Nat.	Ecurie			Moteur
4	Hiroshi Aoyama				Red Bull KTM GP 250			KTM
5	Alex De Angelis				Master - MVA Apsar			Aprilia
14	Anthony West				Kiefer - Bos - Castrol Racing			Aprilia
15	Roberto Locatelli				Team Toth			Aprilia
19	Sebastien Porto				Repsol Honda			Honda
21	Arnaud Vincent				Arie Molenaar racing			Honda
23	Arturo Tizon				Wurth Honda BQR			Honda
24	Jordi Carchano				Stop And Go Racing team			Honda
25	Alex Baldolini				Matteoni Racing			Aprilia
28	Dirk Heidolf				Kiefer - Bos - Castrol Racing			Aprilia
34	Andrea Dovizioso				Humangest Team 250cc			Honda
36	Martin Cardenas				Wurth Honda BQR			Honda
41	Michele Danese				WTR Blauer USA			Aprilia
44	Taro Sekiguchi				Ticino Hosting Campetella Racing			Aprilia
48	Jorge Lorenzo				Fortuna Aprilia			Aprilia
50	Sylvain Guintoli				Equipe Gp de france - Scrab			Aprilia
54	Manuel Poggiali				Red Bull KTM GP 250			KTM
55	Yuki Takahashi				Humangest Team 250cc			Honda
57	Chaz Davies				Ticino Hosting Campetella Racing			Aprilia
58	Marco Simoncelli				Squadra corse Metis
73	Shuhei Aoyama				Repsol Honda			Honda
80	Hector Barbera				Fortuna Aprilia			Aprilia
96	Jakub Smrz				Cardion AB Motorracing			Aprilia

125cc
Num	Pilote			Nat.	Ecurie			Moteur
1	Thomas Luthi				Elit Caffe Latte			Honda
6	Joan Olive				SSM Racing			Aprilia
7	Alexis Masbou				Malaguti Ajo Corse			Malaguti
8	Lorenzo Zanetti				Skilled I.S.P.A. Racing			Aprilia
9	Michael Ranseder				Red Bull KTM Junior Team			KTM
10	Angel Rodriguez				Totti Top Sport - 3C			Aprilia
11	Sandro Cortese				Elit Caffe Latte			Honda
12	Federico Sandi				SSm Racing			Aprilia
14	Gabor Talmacsi				Humangest team 125cc			Honda
15	Michele Pirro				WTR Blauer USA			Aprilia
16	Michele Conti				Valsir Seedorf Racing Team			Honda
17	Stefan Bradl				Red Bull KTM Junior Team			KTM
18	Nicolas Terol				Derbi Racing			Derbi
19	Alvaro Bautista				Master - Mva Aspar Team			Aprilia
20	Roberto Tamburini				Maettoni racing			Aprilia
22	Pablo Nieto				Multimedia Racing			Aprilia
23	Lorenzo Baroni				Humangest team 125cc			Honda
24	Simone Corsi				Metis Team			Gilera
26	Vincent Braillard				Multimedia Racing			Aprilia
27	Stefano Bianco				Totti Top Sport			Aprilia
28	Jules Cluzel				Angaia Racing			Honda
29	Andrea Iaonne				Ticino Hosting Campetella Racing			Aprilia
32	Fabrizio Lai				Valsir Seedorf Racing Team			Honda
33	Sergio Gadea				Master - Mva Aspar Team			Aprilia
35	Raffaele De Rosa				Multimedia Racing			Aprilia
36	Mika Kallio				Red Bull KTM GP 125			KTM
37	Joey litjens				Arie Molenaar Racing			Honda
38	Bradley