Van Halen singer Sammy Hagar - the man who boasts in song "I Can't Drive 55" - has just designed a new terrain/mountain bicycle called the Red Rocker, according to the Los Angeles Daily News. The frame, handlebars and stem have been built by Fisher Mountain Bikes, a San Rafael, Calif., company that manufactures specialty mountain cycles. Hagar - whose nickname is the Red Rocker, by the way - is a longtime cycling enthusiast, and his hobby has evolved into a business venture. He operates two Northern California retail outlets, Sausalito Cyclery and Corte Madera Cyclery.