User blog comment:Oknight/Sphere is the Super Cycle/@comment-3465526-20110917180927

Granted, while any unidentified white dog associated with Superboy is presumptively Krypto, the only thing we know is he's riding in the front seat (if that is the Super Cycle). Maybe Superman hasn't accepted him but Krypto has (if that's Krypto)? I assume he'd SMELL like Superman -- does a Superdog care about anything else?