Model year 2013 saw the very first EPS (electronic) models. There were also new triple-cage-length models in both silver and black in both Athena and Veloce. Finally a new mid-cage-length Centaur made an appearance.
So the derailleur range was:
- Campagnolo Super Record EPS (RD12-SR1EPS)*
- Campagnolo Super Record (RD11-SR1)
- Campagnolo Record EPS (RD12-RE1EPS)*
- Campagnolo Record (RD11-RE1)
- Campagnolo Chorus (RD11-CH1)
- Campagnolo Athena EPS (RD12-AT1EPS)*
- Campagnolo Athena bright silver (RD11-AT1)
- Campagnolo Athena bright silver (RD13-ATS13)*
- Campagnolo Athena deep black (RD12-ATB1)
- Campagnolo Athena deep black (RD13-ATB13)*
- Campagnolo Centaur deep black (RD11-CEX)
- Campagnolo Centaur deep black (RD13-CEBXM)*
- Campagnolo Centaur black & red (RD12-CERBX)
- Campagnolo Centaur black & red (RD12-CEBRXM)*
- Campagnolo Veloce bright silver (RD11-VLXS)
- Campagnolo Veloce bright silver (RD11-VLXM)
- Campagnolo Veloce bright silver (RD13-VLSX3)*
- Campagnolo Veloce deep black (RD11-VLBXS)
- Campagnolo Veloce deep black (RD11-VLBXM)
- Campagnolo Veloce deep black (RD13-VLBX3)*
* New for model year 2013
From 2004 to 2012, the part numbers were made up as follows:
- 'RD' for 'rear derailleur'.
- Numbers to indicate the year of introduction. So, for example, '9' indicated 2009 and '10' for 2010.
- A dash for good measure
- Two letters that indicated the model/group name. So, for example, 'RE' meant Record.
- Some, slightly random, optional, letters that indicated colour options. So, for example, 'B' meant black.
- A character to indicate the number of speeds. So '1' for 11-speed and 'X' for 10-speed.
- A letter to indicate cage length. So 'S' for short, 'M' for medium and 'L' for long - all of which was curiously not in Italian.
These images are taken from a pdf, downloaded from the Campagnolo web site some years ago.