Shimano Front Derailleur Ultegra FD-R8050 Di2 Braze On 11-Speed

The front derailleur incorporate these new cockpit functions. The electronic front derailleur is compact and designed to protect the shifting operation in the event of a crash.

The new Ultegra R8000 series is taking our rider-tuned philosophy to the next level, with an extensive range of components for mechanical shifting, electronic shifting (Di2) and time trial / triathlon. 

The FD-R8050 front derailleur provides for ultra-smooth shifting. It flawlessly moves your chain up and down, without extra effort. The result is a shift that is precise and direct, with no delay. The front derailleur is designed to handle quick and smooth shifting under high pedaling torque. Combining with the re-designed crankset, the front derailleur has been redesigned to fit a wider gear pitch without sacrificing shifting.

FEATURES

• Ergonomic shifting operation without stress
• SHIMANO synchronized shift
• Race endurance for less damage in crush
• Quick and smooth front shifting "under" high pedaling torque
• Maintains compact and smooth appearance

SPECIFICATIONS

• Use: Road
• Group: Ultegra Di2
• Model: FD-R8050
• Mounting: Braze On
• Action: Down-Swing
• Gear front: 2-speed
• Gear rear: 11-speed
• Top gear teeth: 46-53T
• Total capacity: 16T
• Compatible Chain: HG-EV 11-speed / HG-X 11-speed
• Chain stay angle: 61-66°
• Chain line: 43.5mm
• Compatible: EW-SD50
• Master unit: No
• Firmware update by E-tube Project: Yes
• E-tube port (pcs): 1
• E-tube connector (pcs): 0
• Material:
• Aluminum
• Steel
• CFRP
• Weight: 132g (manufacturer information)

TECHNOLOGY

• Shadow RD
  The mechanism rear derailleur, SHIMANO SHADOW RD, is intended for more aggressive riding. Its super low profile design carries many benefits. Because of its low profile and single tension construction, the derailleur does not hit the chain stay in rough riding conditions. The result is smooth and silent performance.
• The SEIS innovative shift technology is still based on the SHIMANO INDEX SYSTEM (SIS) that has proved its superior gear changing characteristics over the years. The big difference is that in this case, the shifting action is provided for by electronics instead of mechanics. This electronic shifting system has been extensively tested over past two years by several professional riders in all conditions possible, such as rain, mud, low temperatures, cobble stone roads and combinations of all of these at the same time. Shifting is executed by simply pressing the button. No power is needed to shift, which gives important advantages since it is easier now to always keep a tight grip on the handlebar and to keep your concentration on riding instead on shifting. The shift system allows accurate and effortless shifting in difficult circumstances like when you have cold hands or when you are completely exhausted. Furthermore, the shifting performance will never be affected by contaminated or stretched cables since the shifting signal is transferred electronically. The operating buttons work similarly to mechanical Dual Control Levers so you don’t need to re-program your mind for a new system.
• E-Tube platform offers optimum flexibility on your bike. E-TUBE transmits interactive signals and power supply to each parts by “Plug & play” connection. E-TUBE is no rust, no stretch, no freeze and it ensures advanced low maintenance. And SM-PCE1 connects between PC and components to update firmware. Digital device stay the latest version with updating firmware for improve function.
• SHIMANO Synchronized Shift is a new feature introduced to Shimano´s electronic road groupsets, designed to simplify gear choice and reduce decision making in racing situations. When riding at maximum capacity, decision making can be impaired. The less stresses on a rider and the less decisions a rider has to make, the less mistakes they will make. Therefore SHIMANO Synchronized Shift is designed to choose the next biggest or lowest gear ratio irrespective of whether a gear change needs to be made by the front or rear derailleur.