Difference between these tyres

[springbokkie]

Bridgestone

B390
B391
MY-01 Sports Tourer
Potenza Adrenalin RE001
Potenza RE050
Turanza ER300

http://www.supaquick.co.za/catalogue.asp?categoryid=1

Can anyone please explain what the difference is between these tyres?

 

[HammerDown]

If you click the "More" button it tells you all EG:
B391

Brand: Bridgestone
Classification: General Use

Classification tells you the grip and life of the tyre. More agressive/sportier/lower profile=shorter life