DERAILLEURS - REAR
2009 Campagnolo Super Record 11 Rear Derailleur
Campagnolo Super Record 11 shift quality is defined by its low-effort crispness. While most of the shifting magic is built into the Super Record 11 Ergopower levers, the Ultra Shift design of the Super Record 11 rear derailleur complements the levers, and together they deliver a 13% reduction in ...read more
2009 Campagnolo Record 11 Rear Derailleur
In terms of shifting crispness, there's no difference between the Campagnolo Record 11 rear derailleur and the Super Record 11 version. They're both built with the same Ultra Shift design to maximize the torsional stiffness (and thereby the shifting precision) of the derailleur. Rather, just a ...read more
2009 Campagnolo Chorus 11 Rear Derailleur
In comparison to Record 11, the Campagnolo Chorus 11 rear derailleur has more aesthetic than structural differentiation. Since the Chorus 11 uses a full-alloy pulley cage instead of the metal-carbon cage used for Record, there's significantly more silver to behold, giving the Chorus 11 a more ...read more
2009 Shimano Dura Ace Di2 Rear Derailleur, Wire Kit, and Battery System
Shimano's Dura Ace electronic Di2 rear derailleur, RD-7970, pretty closely resembles the RD-7900, their mechanical derailleur. It has the same 11t pulleys, the same carbon pulley cages, the same body shape, and the same black anodized finish. But a close look reveals how different it is. The ...read more
2009 Shimano Dura Ace Di2 7970 Rear Derailleur
Shimano's Dura Ace electronic Di2 rear derailleur, RD-7970, pretty closely resembles the RD-7900, their new mechanical derailleur. It has the same 11t pulleys, the same carbon pulley cages, the same body shape, and the same black anodized finish. But a close look reveals how different it is. ...read more
2009 Shimano Dura Ace RD-7900 Rear Derailleur
Shimano's dominant position in the bike industry is based foremost on one simple fact: They can forge metals with a creativity and sophistication far beyond anything their competitors can dream. Shimano factories are crammed with VW Bug-sized forging machines that spend all day long pounding ...read more
2010 Shimano Ultegra RD-6700 SS Rear Derailleur
Wider links. That's the secret sauce for better, faster shifting at the rear derailleur for Shimano's Ultegra 6700 rear derailleur. Think about how wider things are better at resisting torsional load than narrower things. Same thing for the new Ultegra design. The shift plates are wider, ...read more
2008 SRAM Red Rear Derailleur
Those Head & Shoulders TV ads were absolutely right: You never get a second chance to make a first impression. It's why Campy Record shifts like a dream, same with Shimano Dura-Ace. 90% of a person's judgment on the quality of one gruppo over another takes place in about 5 seconds: It's the 5 ...read more
2010 SRAM Force Rear Derailleur
SRAM doesn't really need to do much to improve its rear derailleur offerings. The 2009 Force is pretty amazing and unique, and the 2010 Force is much of the same, only a bit lighter. The only change is going from carbon weave for the outer pulley cage to unidirectional carbon fiber. ...read more
2009 SRAM Rival Rear Derailleur
The knee-knocking shift quality of DoubleTap levers carries straight through from Red into Rival. The stout 2-spring construction with Exact Actuation technology of the Red and Force rear derailleurs is replicated in every detail in Rival. You'll feel the same quick, crisp, positive shifting you ...read more
