From manufacturer's official website:

The Record™ 2007 QS™ front derailleur, already previously characterized by the external reinforced carbon fork and by the internal chemically-treated aluminium one, adopts the elongated arm which, interfaced with Ergopower™ QS™ controls, permits even more immediate and lighter shifting.

Available in both the version to interface with standard cranksets and the version for compact cranksets.

Maximum performance for the most demanding professionals.

For more information, please visit this product's webpage.