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Shimano Ultegra Di2 Rear Derailleur RD-R8050SS

Category: Equipment > Components


Base price:287.31 $
Current price:287.31 $
Reduction:terms-71.77 $
Your price:215.54 $
Estimated shipping price:terms22.53 $
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Note: VAT charge is excluded for buyers outside Switzerland

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  • Description
  • Specifications
Employing the latest technologies from elite Dura Ace R9100 road components and through its proven System Engineering approach, Shimano’s Ultegra R8000 series delivers refined rider ergonomics, increased shifting performance and confident control in all riding conditions. Riders who choose the Di2 shifting components (R8050) have further the possibility to turn on or off the multi-shift function as well as to customize every key's setting individually.

Shimano Synchronized Shifting
Shimano's Synchronized Shift technology is a new feature introduced to their 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.

Shimano's Synchronized Shift technology adds two shifting modes to the standard manual one, in which front and rear derailleur were controlled independently from each other:

Full Synchronized Shift mode:
The front derailleur reacts based on the rear derailleur’s shift action. This essentially means that, when activated, there is no need for two separate shifters to control front and rear derailleurs, the two buttons on one shifter will control both derailleurs.

Semi Synchronized Shift mode:
The rear derailleur reacts based on the front derailleur’s shift action, shifting to the next most appropriate rear gear when the rider makes a front shift.

Compatibility Ultegra Di2 RD-R8050-SS:

overall capacity: 35 teeth
largest sprocket: 25 to 30 teeth
smallest sprocket: 11 to 14 teeth
max. chain wheel difference: 16 teeth


Compatibility Ultegra Di2 RD-R8050-GS:

overall capacity: 39 teeth
largest sprocket: 28 to 34 teeth
smallest sprocket: 11 / 12 teeth
max. chain wheel difference: 16 teeth
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