Precision actuators move the cage swiftly and smoothly for fast silent accurate front shifts every time.
KEY FEATURES:
- Quick and smooth front shifting under high pedaling torque
- Programmed control of chain guide
- SHIMANO Synchronized shift
- Full and semi synchronized shifting program
- Redesigned to fit wider gear pitch without sacrificing shifting
- Shorter length of rear center (410mm) with O.L.D. 135mm
- System communication with rear derailleur, Programmed control of chainguide works for minimal chance of chain drop
The all-new Ultegra R8050 group is the result of 40 years of development and innovation tested to the limit at the highest level of competition in road racing time trials and cyclo-cross.
Ultegra delivers concentration control and confidence with slick fast accurate performance that you can depend upon without distraction. Ultegra now has an 11-speed cassette with numerous gearing options to cover all situations.
Leading edge design materials and construction reduce weight improve stiffness and enhance control.
About Derailleurs Front - Road
Various derailleur systems were designed and built as far back as the late 1800s. A French bicycle tourist writer and cycling promoter Paul De Vivie (1853-1930) invented a two speed rear derailleur in 1905 which he used on forays into the Alps and we wonder if 20 gears are enough. Since then there has been many advancements in the number of gears materials and reductions in weight.
About Derailleurs Rear - Road
Various derailleur systems were designed and built as far back as the late 1800s. A French bicycle tourist writer and cycling promoter Paul De Vivie (1853-1930) invented a two speed rear derailleur in 1905 which he used on forays into the Alps and we wonder if 20 gears are enough..... Since then there have been many advancements in the number of gears materials and reductions in weight.
Buy Online Shimano a Dura-Ace R800 Di2 Front Derailleur at TexasCyclesport.com
