Jesse James makes a guest appearance on American Chopper: The Build-Off, and not only does the motorcycle mechanic talk smack about some of his competitors, but he seemingly blames ex-wife Sandra Bullock for his bad press and career problems! "I became a big shot and married some Hollywood actress and didn't talk to anybody anymore, so I feel bad," James says in the clip. "I feel obligated to reconnect with all these people and show 'em that I'm still the same fabricator motorcycle guy ... I'm not what I became." Hmm, I guess he doesn't remember Bullock winning an Oscar in 2010 and thanking him during her acceptance speech!

When he was done slamming Bullock, James ripped on Paul Teutul and Paul Teutul Jr., the stars of the show and fellow custom motorcycle manufacturers. "I dont know what the Teutuls do for a gas tank -- I think he just yells at someone to get it done and it didnt matter how it got done," James proclaims. "I cant see that stuff lasting, I think it will work if the bike is static and just gets started up for TV. My stuff is meant to do 100...like full, aggressive riding and to withstand punishment."

Bullock divorced James in 2010 after 5 years of marriage, and claims of his inifidelity emerged right after she thanked him at the Oscars. James later admitted to cheating on Bullock, and he said in an interview that he took "a pretty amazing life and marriage" and "threw it away."