Released in 2009, the Ultegra. It featured an AR-C spool, AR-B bearings (making this reel fine for saltwater use), an aluminum alloy frame, SR one piece bail wire, and a super ship 3d master gear. The 1000, C2000, and 2500 came with an I shaped knob, while the C3000, 4000, C5000 and 6000PG came with a T shaped knob.