Shimano Dura Ace Di2 FD-R9150 front derailleur

The new Shimano Dura Ace R 9150 series boasts the Syncro Shift function, increased shifting capacity, the EW-WU111 Bluetooth interface and, of course, perfect workmanship.

The Dura Ace FD R9150 front derailleur, with its programmable Syncro Shift function, 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.

Synchro-Shift technology

Synchro-Shift technology simplifies shifting immensely and significantly reduces the number of decision-making processes that take place whilst riding. Particularly in crucial race situations or when riding at full throttle, riders often have to navigate a multitude of decision-making processes alongside the physical strain, which are frequently disrupted and lead to wrong decisions. 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 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 Dura-Ace DI2 FD R9150 front derailleur Technical specifications:

• Compatible with SG-X chainrings
• for 2-speed cranksets
• Capacity: 16 teeth
• Largest chainring to be shifted: 50–56 teeth
• Weight: 104 g Solder-on mount version
• Compatible only with Dura-Ace Di2 9150 and 9070 shift levers

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