Shimano Ultegra Di2 R8050 2x11 34-50 Groupset

Some people say it doesn’t matter which path you take, as long as you arrive at your destination. But you know better than that. Riding is not about a destination. It’s about being on the road, whether that road is smoothly paved or full of potholes and cracks. It’s about tackling mountains and steep grades, with a sense of awe for the accomplishments of body and bike. And it’s about sharing that awe with friends – or savouring it alone. So yes, it truly matters which choices you make. Because in the end, they determine how far you will go. On your ride. Your route. Your Ultegra.

Information regarding the return of batteries:

Find out more here.

Specifications:

Series: Ultegra Di2 R8050
Application: Road
Gearing: 2x11-speed
Cable Routing: internal (only for compatible frames)
Battery Mount: internal
Junction Box (Junction A): internal (frame or handlebars) or external (under stem)

Components:

Crankset: 170.0 mm, 172.5 mm, 175.0 mm (gradation 34-50)
Cassette: 11-28, 11-30, 11-32, 11-34
Front Derailleur: braze-on
Rear Derailleur: short cage (11-28, 11-30), long cage (11-32, 11-34)
Brakes: standard rim

Additional Parts Needed:

The following components are required to use the Ultegra Di2 R8050 groupset:
- bottom bracket: Shimano recommends BB-R9100 (BSA/ITA) or SM-BB92-41B (Pressfit) Hollowtech II.
- 2 x rotors SM-RT900 (140 or 160 mm)
- for external junction box (SM-EW90-A): 6 x EW-SD50 power cables (2 x for STI, 1 x for SM-JC41 = Junction B, 1 x for front derailleur = FD, 1 x for rear derailleur = RD, 1 x for battery)*
- for internal junction box (EW-RS910), handlebar mount: 5 x EW-SD50 power cables (1 x for STI, 1 x for SM-JC41 = Junction B, 1 x for front derailleur = FD1 x for rear derailleur = RD, 1 x for battery) + 1 x EW-JC130 Y-cable junction box (connection between EW-RS910 = Junction A with STI and SM-JC41 junction box) + 1 x EW-JC200 junction box (connection between EW-JC130 and EW-SD50 to SM-JC41 junction box)**
- for internal junction box (EW-RS910), frame mount: 5 x EW-SD50 power cables (1 x for EW-RS910 = Junction A, 1 x for SM-JC41 = Junction B, 1 x for front derailleur = FD, 1 x rear derailleur = RD, 1 x for battery) + 1 x EW-JC130 Y-cable junction box (connection between EW-RS910 and STI) + 1 x EW-JC200 junction box (connection between EW-JC130 and EW-SD50 to EW-RS910)***
- rubber grommets for internal cable
- wireless unit (optional): EW-WU111 (or EW-WU101)

* For the correct cable length the following frame measurements are need:
- Length of down tube = distance between bottom bracket and stem
- Distance between bottom bracket and front derailleur
- Distance between battery and bottom bracket
- Distance between rear derailleur and bottom bracket
- Distance between shifters (STI) and stem centre

** For the correct cable length the following frame measurements are need:
- Length of down tube = distance between bottom bracket and wireless unit or EW-JC200
- Distance between bottom bracket and front derailleur
- Distance between battery and bottom bracket
- Distance between rear derailleur and bottom bracket
- Distance between shifters (STI) and stem centre
- For Y-cable: 1. distance between stem and bar end with EW-RS910, 2. distance between stem and STI closest to EW-RS910

*** For the correct cable length the following frame measurements are need:
- Length of down tube = distance between bottom bracket and wireless unit or EW-JC200
- Distance between bottom bracket and front derailleur
- Distance between battery and bottom bracket
- Distance between rear derailleur and bottom bracket
- Distance between wireless unit or EW-JC200 and EW-RS910
- For Y-cable: 1. distance between stem and left STI, 2 distance between stem and right STI

You can find more information about installation in the Shimano Handbook or by contacting our service team.

Contents:

The Shimano Ultegra R8050 Di2 groupset includes:
- 1 x Shimano Ultegra crankset (FC-R8000)
- 1 x Shimano Ultegra Di2 rear derailleur(RD-R8050)
- 1 x Shimano Ultegra Di2 front derailleur (FD-R8050)
- 1 x Shimano Ultegra Di2 STI 2-/11-speed shift/brake levers (ST-R8050), incl. cables, housings and plug tool
- 1 x Shimano Di2 battery(BT-DN110)
- 1 x Shimano Di2 charger (SM-BCR2)
- 1 x Shimano Junction Box (EW-RS910 internal or SM-EW90-A external)
- 1 x Shimano SM-JC41 internal Junction Box
- 1 pair of Shimano Ultegra rim brakes (BR-R8000)
- 1 x Shimano Ultegra cassette, (CS-R8000) or CS-HG800-11 (11-34)
- 1 x Shimano Ultegra / XT Quick-Link chain (CN-HG701-11)