Description Top performance, further refined. As the Record 11 Rear Derailleur enters its second generation for 2011 it picks up many features from last year's Super Record model for a lighter weight and even longer service life.
The upper pulley now uses a ceramic bushing, and the lower pulley features a compliment of ceramic bearings for efficiency and wear resistance. Both pulleys also feature a special lightened rubber compound for quieter performance.
Campy's new two-piece alloy fixing bolt is stronger than Titanium and actually lighter as well. 29 tooth max sprocket. 11 speed compatible only. 172g.
Articles A description of the different types of bottom brackets, the bearings for bike cranks.
You wanna go fast? Join the ceramic revolution!
An introduction to road bike cranksets.
