component-FD-M9070

The XTR Di2 M9070 Down Swing Front Derailleur features a 25% increased power vs M9000, an optimized Di2 cage profile, improved gear tracking and reliable gear c

manual-di2-front-derailleur

Di2 Front Derailleur User Manual

di2-dealer-manual-xtr-m9050

XTR M9050 Dealer Manual

## Synchronized shift and MTB derailleurs
Want to use MTB derailleurs and also synchronized shift? You need a display in order for synchronized shift to function.

The two displays I recommend are the [SC-MT800 display](/component/xt-display-junction-sc-mt800/) and its more expensive XTR equivalent, the [SC-M9051](/component/xtr-display-junction-sc-m9051/). Functionality-wise, they're exactly the same. It is just the casing that is different.

This guide applies to front derailleurs that have two adjustment bolts (or limit screws). All first generation 11-speed derailleurs are two-adjustment-bolt derailleurs:

- [Ultegra FD-6870](/component/ultegra-front-derailleur-fd-6870-f/)
- [DURA-ACE FD-9070](/component/dura-ace-front-derailleur-fd-9070-f/)

Before your start, make sure you have correctly set up your front derailleur height, angle, and support bolt. Have a look at the [front derailleur installation guide](/ultegra-fd-6870-dura-ace-fd-9070-di2-front-derailleur-installation-guide/) for information on how to do that.

## Set the low adjustment bolt
These derailleurs have three bolts close to each other, so take a moment to identify the correct bolt to adjust. We’ll first set the low adjustment bolt and have colored it yellow in the image below.

![FD low limit bolt](https://assets.bettershifting.com/two_bolt_limit_setup_front_derailleur_low_limit_screw_51a89ee9af.png)

In order to set the low adjustment first shift the front derailleur to the small chainring. Then, shift the rear derailleur to the largest sprocket.

Now take your size 2 hex wrench and turn the adjustment bolt to set the clearance between the chain and the chain guide inner plate. The goal is a clearance (**B–C**) between **0 and 0.5 mm** – but not so close to 0 that the chain rubs the chain guide

![Adjust the FD low limit electronically](https://assets.bettershifting.com/two_bolt_limit_setup_front_derailleur_set_low_limit_screw_ca4297a15b.png)

## Set the top adjustment bolt
![FD top limit bolt](https://assets.bettershifting.com/two_bolt_limit_setup_front_derailleur_top_limit_screw_625349d5de.png)

The top adjustment procedure is similar to that of the low adjustment. You identify the correct bolt – colored yellow in the image above – and turn it to set the clearance.

Start by shifting the front derailleur to the largest chainring and shift the rear derailleur to the smallest sprocket. Now turn the adjustment bolt until the clearance between the chain and chain guide outer plate is **between 0.5 and 1mm** (this is the distance between **B and C**).

![FD set up top limit screw](https://assets.bettershifting.com/two_bolt_limit_setup_front_derailleur_set_top_limit_screw_6c5f233b63.png)

## All done – electrical adjustment
You should now be done setting up limit bolts for your front derailleur. Next up is setting the electrical top limit.

Note that this section does **not** apply to the [6770 front derailleur](/component/ultegra-10-speed-front-derailleur-fd-6770/) - these 10-speed front derailleurs do **not have an electrical adjustment** setting.

Why also set the electrical top limit if you've already set the physical limit using the limit adjustment bolt? The top adjustment bolt sets the hard limit (between 0.5 and 1.0 mm) and the electrical top limit adjustment sets the final position (0 – 0.5 mm), allowing the front derailleur to overshift slighty – which is what we want.

## High limit adjustment
The process for doing the high limit adjustment is relatively simple, just follow these steps. 

To begin, shift the front derailleur to the **large chainring** and the rear derailleur to the **largest sprocket**.

Press and hold the button on junction A until the LED next to it lights up red. You will now enter adjustment mode. You then use the buttons on your shifter to move the front derailleur in or out - depending on the buttons you're pressing.

Use the shifter buttons to set the clearance between the chain and the chain guide inner plate to **0.0 and 0.5 mm**. 

When you’re done just press and hold the junction A button to leave adjustment mode.

![Buttons and their direction](https://assets.bettershifting.com/adjust_front_fd_buttons_direction_01400553bd.png)

## All done!
Note that this is not the only way to micro-adjust your front derailleur. You could also [connect your bike to your Windows computer](/how-to-connect-your-di2-system-to-your-windows-computer/) and use the e-Tube project software to adjust your derailleurs.

two-bolt-limit-setup-front_derailleur_low_limit_screw

Read how to set up your two-adjustment-bolt Di2 Front Derailleur (Ultegra FD-6870, DURA-ACE FD-9070)

Front Derailleur (2x)

XTR FD-M9070

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Synchronized shift and MTB derailleurs

Specifications

Related components

Related pages

Set up Front derailleur limits (two bolt derailleurs: 6770, 6780, 9070)

Manuals & other documents