"This was the first product that helped re-establish SRAM as a performance brand," said Ron Ritzler, SRAM's road product manager. "Our goal at the time was to spare no expense and make the best derailleur in terms of weight, performance and durability. For this year we've changed the technology that makes up the cage."
The new X.0 rear derailleur has a cage modeled after the Force road rear derailleur and will be able to accommodate the new BlackBox ceramic pulleys (the older style X.0 derailleurs will not).
The outer half of the pulley cage is made from carbon fiber, but the inner half has been replaced with 7000-series aluminum. The update is said to bring stiffness to the lower cage along with more chain control. SRAM also claims that the impact strength of the cage has been increased by five times over the previous all carbon version.
The new hybrid carbon cage will also be found on the long-cage X.0 derailleur. Historically only the short and medium cage lengths were made with carbon. An outside vendor made the old composite cages, while the new design relies completely on SRAM's own carbon technology.
The B-bolt is anodized gold and laser-etched with the 20th anniversary logo. Regardless of cage length chosen, the new X.0 rear derailleur will cost $230.