The "tech vault" section has some info on tires. Once you've decided on which tires you might want; check to see if the shop you're having put the tires on (assuming you're not doing it yourself) can get them for you. I found my local shop could give me as good a price as online, had them in stock, and sometimes they cut you a break on the install and balance if you bought from them. FWIW I replaced my front original Bridgestone with a Metzeler ME880 100/90-18 and I couldn't be happier with the results. I highly recommend this tire. When I replace the rear I'll go with the ME880 to match.

'05 America, 904, K&N pods, British Customs Bomber Exhaust