For model year 2010 there was only one change - the re-introduction of Athena.
The range therefore was:
- Campagnolo Super Record (RD9-SR1)
- Campagnolo Record (RD9-RE1)
- Campagnolo Chorus (RD9-CH1)
- Campagnolo Athena (RD10-AT1)*
- Campagnolo Centaur (RD9-CEXS)
- Campagnolo Centaur (RD9-CEXM)
- Campagnolo Veloce (RD9-VLXS)
- Campagnolo Veloce (RD9-VLXM)
- Campagnolo Comp Triple (RD7-COXL)
* New for model year 2010
From 2004 onwards 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, 'G' meant Century Grey.
- A character to indicate the number of speeds. So '1' for 11-speed and 'X' for 10-speed.
- An optional 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 come from a pdf, downloaded from the Campagnolo web site some years ago.