Obviously, bikes are slower than cars round corners. They are light, have less ground contact as compared to a car, hence they are slow during braking and also cornering.
Lets end this thing. Lets compare track times of a MOTOGP and a Formula1.
I know I have gone too much in the car's favor, some may say that is in insane and not fair comparing a bike to a car that is almost a jet. So, I will be comparing F1's race lap times to MotoGP's qualifying times.
Here goes,
Sepang:
Formula 1 lap record : J. Montoya - 1'34''223
(2004, Williams)
Moto GP 2007 Qualifying:
1. Dani Pedrosa SPA Repsol Honda Team (M) 2min 1.877 secs
2. Casey Stoner AUS Ducati Marlboro Team (B) 2min 1.918 secs
3. Marco Melandri ITA Honda Gresini (B) 2min 1.944 secs
4. Randy de Puniet FRA Kawasaki Racing Team (B) 2min 2.107 secs
5. Anthony West AUS Kawasaki Racing Team (B) 2min 2.202 secs
6. Nicky Hayden USA Repsol Honda Team (M) 2min 2.225 secs
7. Chris Vermeulen AUS Rizla Suzuki MotoGP (B) 2min 2.301 secs
8. Toni Elias SPA Honda Gresini (B) 2min 2.432 secs
9. Valentino Rossi ITA Fiat Yamaha Team (M) 2min 2.466 secs
10. John Hopkins USA Rizla Suzuki MotoGP (B) 2min 2.697 secs
11. Loris Capirossi ITA Ducati Marlboro Team (B) 2min 2.708 secs
12. Alex Barros BRA Pramac d'Antin (B) 2min 3.022 secs
13. Colin Edwards USA Fiat Yamaha Team (M) 2min 3.040 secs
14. Shinya Nakano JPN Konica Minolta Honda (M) 2min 3.233 secs
15. Sylvain Guintoli FRA Dunlop Yamaha Tech 3 (D) 2min 3.408 secs
16. Carlos Checa SPA Honda LCR (M) 2min 3.525 secs
17. Chaz Davies GBR Pramac d'Antin (B) 2min 4.197 secs
18. Makoto Tamada JPN Dunlop Yamaha Tech 3 (D) 2min 4.314 secs
19. Nobuatsu Aoki JPN Rizla Suzuki MotoGP (B) 2min 4.604 secs
20. Kurtis Roberts USA Team Roberts (M) 2min 5.404 secs