Rich's Tongfamily (Richtong.net add-on)

CAMPAGNOLO 2003 RANGE – INNOVATION. _It’s been confusing which of the three different derailleurs you should get. Here’s a simple explanation_
The Campagnolo Record, Chorus and Centaur groupsets offers three models of rear derailleurs with short, medium and long cage. The rear derailleur with the short cage is for equipping the 2×10 drivetrain, while the medium cage version is required for the 2×10 drivetrain with the 13-29 sprocket cassette and for all the 3×10 drivetrain combinations with the exception of 13-29 which requires the model with the long cage.
The new crankset is distinguished by smart refined styling and the excellent functionality of its construction. It is available in two combinations, 30-40-50 and 32-42-53.