Shimano Ultegra Di2 RD-R8050-SS rear derailleur
The new Shimano Ultegra Di2 R8050 series, the affordable version of Shimano’s electronic road bike components. Perfect shifting and programmable.
Shimano Ultegra RD R8050 Di2 rear derailleur
The SS (short cage) version of the Ultegra Di2 rear derailleur, featuring a short cage for cassettes with up to 30 teeth. The Ultegra Di2 RD R8050 rear derailleur, featuring the Syncro Shift function programmable via the Bluetooth interface (EW-WU111), allows the rear derailleur and front derailleur to be operated with a single lever. The system then automatically selects the front derailleur function to shift into the next gear. Precise, lightning-fast gear changes at the touch of a button, in any situation.
Precise, lightning-fast gear changes at the touch of a button, whatever the situation. The Shimano Ultegra Di2 RD R9150 rear derailleur is even more compact and lighter than its predecessor and features E-Tube connectors for extremely easy installation. Equipped with a crash mechanism that disconnects the connection to the motor in the event of strong external forces to prevent damage.
Synchro-Shift technology
Synchro-Shift technology simplifies shifting immensely and significantly reduces the number of decisions that need to be made whilst riding. Particularly in crucial race situations or when riding at full throttle, riders often have to juggle a multitude of decisions alongside the physical strain, which can frequently lead to errors and poor choices. The fewer decisions there are to make, the better the decisions will be and the more attention can be focused on the race. This is precisely what Shimano Synchro-Shift technology enables, always selecting the optimal next-higher or next-lower gear combination, regardless of whether this requires shifting at the rear derailleur and/or the front derailleur.
Shimano Synchro-Shift functions
- Full Synchro-Shift: The front derailleur responds to the shifting operations performed by the rider on the rear derailleur. Essentially, this means that only a single shifter with two levers is required to operate both the rear and front derailleurs.
- Semi Synchro-Shift: The rear derailleur responds to the gear changes the rider makes on the front derailleur. The rear derailleur automatically performs the necessary compensatory shifts for small changes in cadence when shifting up or down on the front derailleur.
Shimano Shadow RDR 8050
With its sophisticated technology, the Shimano Shadow rear derailleur is particularly well-suited to a more aggressive riding style. The extremely slim profile brings a number of improvements. Thanks to its flat design and construction based on single preload, the rear derailleur does not strike the chainstay even under the harshest conditions. The shifting operates smoothly and quietly.
Shimano Di2 installation:
Installing Shimano Di2 components is almost easier than fitting traditional gear systems. The standardised cable connectors and the junction box ensure straightforward and quick installation. The shift levers are connected to Junction Port A on the junction box; a cable runs from Junction Port A to Junction Port B on the junction box, and from there the cables run to the rear derailleur, front derailleur and battery. The battery can be mounted externally on the bottle cage or internally in the seat tube or down tube. Frames specifically designed for this purpose are required for internal cable routing.
To use the wireless function, the new BT-DN110 battery and the EW-WU111 Bluetooth module are also required.
Shimano Ultegra DI2 RD R8050 Rear Derailleur Technical Specifications:
- Wide Link Design: the wider outer parallelogram increases stiffness
- Cold-forged aluminium
- 11-speed compatible
- Bearing-mounted, low-friction
- Largest sprocket to be shifted: 30 teeth at the rear
- Total capacity: 35 teeth
- Compatible only with Shimano Dura-Ace and Ultegra Di2 11x2-speed shifters
Herstellerinformation: SHIMANO INC., 3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan, www.shimano.com | EU contact: Shimano Europe BV, High Tech Campus 92, 5656 AG Eindhoven, The Netherlands, www.shimano.com
