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Shimano Ultegra Di2 Rear Derailleur

Service Pages

Shimano Service Page

Manuals

Rear Derailleur (Di2) Shimano Ultegra R8050 series

Torque Values

Warning: Incorrect tightening of bicycle components can lead to damage, accident, injury, or even death. The accuracy of provided values is not guaranteed; always check directly with the manufacturer.
Bolt Name Tool Torque (Nm)
Tension pulley 2.5 - 5
Guide pulley 2.5 - 5
Bracket axle (direct mount type) 8.0 - 10
Rear derailleur fixing screw 8.0 - 10
Plate stopper pin 1.0 - 1.1
Stopper bolt 1
Plate tension spring retaining screw 0.9 - 1.2

Tools

3 mm Hex Wrench

#2 Phillips screwdriver

T10 Torx Wrench

5 mm Hex Wrench

Videos

Shimano Ultegra Di2 6770 rear derailleur: restore service clean disassembled

ATBOY

How to Index Shimano Di2 Wireless Gears | Maintenance Monday

GCN Tech

Shimano Ultegra R8150 Di2 Derailleur Cage Replacement

Free To Cycle

What’s inside a di2 rear derailleur? Broken di2 won’t shift, how it works.

kramnnim

How To DETAIL & SERVICE your DI2

Bikespeeds

Full rebuild - Shimano Ultegra RD-6700 road rear derailleur. How to service rear mech.

SickBiker

De Rosa DI2 Full Service! DI2 Road Bike Update!

Bikespeeds

Servicing A Shimano Mech In Real Time | Mountain Bike Derailleur Service

GMBN Tech

Shimano Ultegra R8000 Rear Derailleur Service Guide

Free To Cycle

HOW TO ADJUST *MICRO ADJUST* ANY SHIMANO DI2 (ULTEGRA 8050/8070 DURA-ACE 9150/9170) EASY!!

GC Performance

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