component-FD-6770

This first generation Ultegra Di2 Front Deraileur can be used on 2x10 Di2 builds. Note that it will **not** work on triple setups. 

It is meant to be used with

manual-di2-front-derailleur

Di2 Front Derailleur User Manual

di2-dealer-manual-ultegra-6770

Ultegra 6770 Dealer Manual

Originally this derailleur could be used together with an 11-speed rear derailleur, but that functionality was later **removed** in a firmware update.  You can not longer use different speed derailleurs on the same bike.

If you are using one of these with an 11 speed rear derailleur I strongly recommend you ***do not*** update its firmware. 

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)

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

Did you know most 10-speed and 11-speed Di2 hardware is cross-series compatible? You can actually mix different series and even different generations of Di2 hardware, as long as you make sure you follow the Di2 compatibility chart!

Hidden somewhere on the Shimano E-Tube Project website is a [Di2/e-Tube compatibility chart](https://bike.shimano.com/en-EU/e-tube/project/compatibility.html). This useful PDF helps you select your components, making sure they're compatible before spending $$$ and installing them on your bike.

Have a nice Ultegra 6870 setup but want the [newer R8000 shifters](/component/ultegra-dual-control-lever-st-r8050) so that you have [extra buttons on the hoods](/enable-the-buttons-on-your-di2-shifter-hoods)? You can!

Want to use the [mountain bike Di2 display](/component/xt-display-junction-sc-mt800) on your road bike? You can!

Feel like upgrading your derailleurs but not your shifters? Sure! You can!

## 12-speed Di2 compatibility
Before I get started though, a quick note on 12-speed Di2 compatibility. Shimano released their [12-speed DURA-ACE and Ultegra Di2](/dura-ace-r9250-ultegra-r8150-wireless-di2/) groupsets to the world on September 1st, 2021. 

While Shimano has been pretty good with backward compatibility in the past, these new groupsets actually feature *very* limited compatibility with the older Di2 series. There is [a page on 12-speed compatibility](/12-speed-r9200-r8100-and-11-speed-di2-compatibility/), so read that if you're looking for 12-speed Di2 information. 

The remainder of this page applies to 11-speed and 10-speed Di2 compatibility, **not** the newer 12-speed Di2.

## Compatibility chart? Where? How does it work?
The latest version of the compatibility chart can be found on the [Shimano e-Tube project website](https://bike.shimano.com/en-EU/e-tube/project/compatibillity.html). At the time of writing the latest version of the chart is 5.0.1.

Let’s say you want to know whether your [Ultegra RD-6870-GS](/component/ultegra-medium-cage-rear-derailleur-rd-6870-GS) rear derailleur and [Dura-Ace ST-R9150 shifters](/component/dura-ace-dual-control-lever-st-r9150) are compatible with each other. Start with your battery and work your way down.

![Di2 e-tube compatibility - connected boxes](https://assets.bettershifting.com/di2_etube_compatibility_boxes_connected_87eca69a3c.png)

In the image above I have selected the [SM-EW90](/component/below-the-stem-junction-a-sm-ew90) Junction box, [R9150-series Dura-Ace shifters](/component/dura-ace-dual-control-lever-st-r9150) and two 11-speed derailleurs; the [RD-6870 Ultegra rear derailleur](/component/ultegra-medium-cage-rear-derailleur-rd-6870-GS) and the [Ultegra FD-R8050 front derailleur](/component/ultegra-front-derailleur-fd-r8050-f). Note that I could also have selected the [Dura-Ace FD-R9150 front derailleur](/component/dura-ace-front-derailleur-fd-r9150-f) if I wanted to.

Shimano recommends you use components all from the same series, because that’s when they perform best. However, this isn’t feasible for everyone and fortunately, they allow you to use different generation components on the same bike..

The only thing you can never do is mix different speed **derailleurs** or mtb / gravel / road **derailleurs**. **__All derailleurs have to support either 10-speed or 11-speed and from the same ‘category’__**.

### Mixing MTB and Road/GRX components
So.. can you use mountain bike di2 hardware with road hardware? Sort of… it’s complicated. You can definitely use road shifters on a mountain bike – but would you really want to? However, let’s say you wanted to build a 1×11 Di2 setup? You’d probably want to take advantage of the Clutch System Shimano equipped the mountain bike rear derailleurs with, but use your road shifters. You should be able to do this no problem! Alternatively you can use a [GRX rear derailleur](/component/grx-2x-rear-derailleur-rd-rx815) with road shifters, or the [Ultegra RX805 clutch rear derailleur](/component/ultegra-shadow-rd-rear-derailleur-rd-rx805-gs). 

The only real limitation is that derailleurs you use have to be either road/gravel or mountain bike derailleurs – **__you cannot mix these derailleurs__**. Other than that you’re free to do whatever you want.

<LImage width="250" height="250" alt="Alfine MU-S705 motor unit" src="https://assets.bettershifting.com/component_MU_S705_c44237316f.jpeg" />

## E-Bikes, Di2 hubs, motor units
Plenty of people are building Di2 E-Bikes using the [MU-S705](/component/alfine-internal-geared-hub-motor-unit-mu-s705/) or **MU-U500**/**MU-U510** motor units and [Internal Geared Hubs](https://bike.shimano.com/en-EU/product/component/alfine-s7050s705-di2/SG-S7051-11.html). 

While the hubs are Di2-specific, they are not actually connected to the Di2 system. They're just designed to work with the Di2 motor units and can handle the forces the motor units produce.

When it comes to compatibility though, looking up information on these units can be a little confusing. If you look up the hub, you'll find only a couple of entries. 

So what gives? Are the hubs only compatible with Bosch E-Bikes? Are the hubs not compatible with current parts at all?

Don't worry - everything is fine. You see, for compatibility purposes, that hub does not matter at all. **Di2 compatibility** for these systems is **determined by the drive unit**. Ignore the hub, just look at the MU-UR500/510 and the MU-S705 entries instead.

## Compatibility charts
Like you’ve read above, I've linked the Shimano Di2 compatibility charts. Click the image below to view the full compatibility chart PDF. Note that the pages relevant to your setup depend on which series hardware and, perhaps more importantly, which battery or battery mount you’re using.

[![Di2 e-tube compatibility charts image link](https://assets.bettershifting.com/di2_etube_compatibility_charts_link_e9de0203b8.png)](https://bike.shimano.com/content/dam/e-tube/assets/images/contents/project/compatibillity/pdf/en/HM-CC_5.0.1-00-EN.pdf)

featured-di2-etube-compatibility

Di2 Compatibility - mix Ultegra, DURA-ACE, XTR, XT and GRX components

upgrade-smew67a

Upgrade your old 6770 series 10 speed Di2 bike to 11 speed Di2. This guide tells you how to do that and also upgrade to di2 synchronized shifting and improve your bike's looks.

In-depth guide on upgrading your old Di2 bike

Ultegra 6770 was Shimano's first Ultegra Di2 groupset. It was launched in 2011 and supports 2x10 speed gearing. 

Front derailleur (2x10)

Ultegra FD-6770

Affiliate Links

Specifications

Related components

Related pages

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

Di2 Compatibility - mix Ultegra, DURA-ACE, XTR, XT and GRX components

In-depth guide on upgrading your old Di2 bike

Manuals & other documents