Shimano Dura-Ace R9150 Di2 11 Speed Front Derailleur

The Shimano Dura Ace 9150 Di2 11-speed front derailleur is the successor to the 9070 series front derailleur. This new derailleur is fitted with a more compact design but with the same shifting performance you've come to expect from Dura Ace. Despite the large torsional forces during the pedal stroke, you can always expect fast and smooth gear changes. The Synchronised Shift mode allows you to set up the derailleur to take the optimal chain line into consideration and automatically shift from the big to the small ring or vice versa whenever the cassette starts to deviate from the centre.

Require a derailleur clamp?

Some bicycles do not have a braze on for the front derailleur. To mount this front derailleur you can therefore use this Shimano R9150 Di2 Derailleur Clamp.

• Adapted for a road bike-specific frame design
• Shimano Synchronised shift
• Total capacity: 16T
• Weight: 104 grams

Reduce the tension on the gear cable
Before you start (dis)assembly, switch the front derailleur to the smallest chainring. That way the tension on the gear cable is smaller, making it easier to remove the derailleur.

Disconnect the gear cable
Use an Allen key to disconnect the gear cable from the derailleur. An Allen key can be found here.

Disassemble the chain
Before you can remove the derailleur, you must also remove the chain. For this you need a chain tool or a missing link pliers. The chain breaker can be found here and the missing link pliers can be found here.

Position the front derailleur
When installing, make sure to leave a gap of about 2mm between the outer edge of the derailleur and the largest chainring.

Adjust your derailleur
It is important to properly adjust the derailleur after installation. This is a meticulous job, which you can read here.

Grease the pivot points for proper operation
It is good to lubricate the pivot points and the cable with some oil from time to time. This keeps the front derailleur shifting smoothly. Good oils that you can use not only for this, but also for lubricating the rest of the drivetrain, can be found here.