Mark Cavendish's legs (Sprinter - fast twitch)
David Zabriskie's legs (Time Trialer, look at those ankles compared to his upper thighs)
David Millar's's legs (Time Trialer)
Bert Grabsch's legs (Time Trialer, nice hamstrings)
Manuel Quinziato's legs (U23 Time Trialer, morphed into an All-rounder)
Chad Beyer's legs (This is what a 5'10" 136 lb (61kg) cyclist looks like) - he does it all.
Carlos Sastre's legs (Climber and Grand Tour winner)
Andy Schleck's legs (Climber - long and lean!)
ENDURANCE Elite endurance athletes have up to 80% slow twitch fibers which allows them to cycle for a long time at medium speeds. These athletes usually are quite light and don’t have much of a sprint. SPRINT Elite track sprinters can have up to 70% fast twitch muscle fibers enabling them to accelerate really fast and reach very high maximum speed but they can only hold the speed for a short period of time. They are usually heavier and very muscular.
The legs that powered the tour Cycling legs at the 2011 Amgen Tour of California.
And more at More legs of the Tour of California