I'm looking to buy another set of beadlocks for the rear, and the Tarmac tires so I can run on asphalt. I have a few questions:

1. I'm looking at buying new beadlocks for the rear, do they include the rings, or do they need to be purchased separately? These are the wheels: http://www.hostilehobby.com/product_info.php?cPath=108&products_id=990&osCsid= ebd48b2068beb625cbecc2f1a3a6f17a, these are the rings I'm referring to: http://www.hostilehobby.com/product_...ecc2f1a3a6f17a

2. Do the tires come with something in them, they look like they have foam in them, but they say foam not included: http://www.hostilehobby.com/product_...ecc2f1a3a6f17a

3. Should I buy these foams anyways? http://www.hostilehobby.com/product_...ecc2f1a3a6f17a


Any help would be appreciated, I'm hoping to place the order tonight, so hopefully I can get it by next weekend.