Dura Ace FD-7970 10 speed Front Derailleur

component-fd-7970

**Compatibility warning**: none of the 7970 series components will work with other generation Di2 components. The plug is different and simply won't fit.

The F

di2-service-instructions-dura-ace-7970

DURA-ACE 7970 service instructions

manual-di2-front-derailleur

Di2 Front Derailleur User Manual

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)

Part of the process of building and setting up a Di2 bike is [setting the front derailleur high/low limits](/micro-adjust-your-di2-front-derailleur/) and indexing or [micro-adjusting your Di2 rear derailleur](/micro-adjust-your-road-bike-di2-rear-derailleur/). This can be done without a computer, by using the shift levers for example.

However, not all bikes have a full set of shift levers and running through the process can be confusing on Time Trial bikes. It is therefore good to know that you can also do both of these things using a Windows computer - all you need is E-Tube Project 4. 

*You can also do this using the previous version of E-Tube Project: [Adjust and set up your derailleurs using E-Tube Project 3.4.5](/micro-adjust-di2-derailleurs-using-computer-no-levers-required-etube3/)*

## Index / Micro-adjust your rear derailleur
On a mechanical road bike you would call this *indexing*, but the correct Di2 term is *micro-adjusting*. It is essentially the same, except with Di2 you can tell the system to move really small (micro!) steps in either direction in order to index the derailleur.

To get started just [connect your bike to your computer](/how-to-connect-your-di2-system-to-your-windows-computer/) and run E-Tube Project. Then open the **maintenance** tab. With the tab open make sure to select the derailleur you want to change. 

In this case click **Rear**. The number that is displayed (**+5**) indicates the current adjustment value for the derailleur.

![Adjust your rear derailleur](https://assets.bettershifting.com/adjust_rd_etube4_start_149979b72f.jpeg)

The on-screen instructions tell you to "move the derailleur to the position shown in the picture".

Don't bother. You can't.

What the application is *trying* to tell you is that it will move the derailleur to that position for you. If you click the start button you'll be told to rotate the cranks. 

![Adjust your rear derailleur turn the cranks](https://assets.bettershifting.com/adjust_rd_etube4_rotate_f3df1b974d.jpeg)

Once the derailleur has shifter to the correct position, the fifth cassette sprocket, you'll be shown the adjustment screen. In this screen you can shift the rear derailleur and change the adjustment value. This last thing is what we're after.

If you're wondering why the fifth sprocket and not the sixth or fourth? Or any other?  It doesn't matter *that much*, but when in the 5th gear the chain line is relatively straight, making sure the adjustment is most accurate.

Another useful feature of this page is that it shows you what gear the **bike thinks it is in**. This can be a useful troubleshooting tool - sometimes the bike thinks it is in gear 3 when it is actually in 4. In those cases check the derailleur hanger, cassette installation and reset the indexing value. Then start over.

![Adjust your rear derailleur adjusted](https://assets.bettershifting.com/adjust_rd_etube4_adjusted_28a8357ddd.jpeg)

#### Micro-adjusting a Di2 rear derailleur goes like this
- Shift the rear derailleur to the **5th** sprocket and the front derailleur to the small ring. The application did this for you.
- Keep turning the crank arms while performing the next steps.
- Press the **Left arrow (-)** button to move the derailleur towards the inside until you hear it rub against the **4th** sprocket
- Hear that rubbing noise? Now use the **Right arrow (+)** button to back it off **four** steps
- Press the **End** button at the bottom of the screen and E-Tube Project will store the requested changes

![Adjust your rear derailleur settings changed](https://assets.bettershifting.com/adjust_rd_etube4_adjusted_saved_388b2fd2c9.jpeg)

## Set the Di2 Front Derailleur limits
Now let's set the Front Derailleur limits. Depending on what series hardware you have installed this page will look slightly different. 

The older [FD-6870](/component/ultegra-front-derailleur-fd-6870-f/) and [FD-9070 front derailleurs](/component/dura-ace-front-derailleur-fd-9070-f/) have both a [low and top adjustment bolt](/set-up-front-derailleur-limit-screws-adjustment-bolts-two-bolt-derailleurs/) and only a top (or inner) electrical adjustment.

Current generation [FD-R8050](/component/ultegra-front-derailleur-fd-r8050-f/), [FD-R9150](/component/dura-ace-front-derailleur-fd-r9150-f/) and [FD-RX815](/component/grx-front-derailleur-fd-rx815-f/) have only one adjustment bolt (Top) and setting them up is a it different. The Shimano help text tells you how to do this, but the general gist of it is:

- Set the front derailleur height and angle
- Adjust the front derailleur top adjustment bolt
- Set the front derailleur low limit (electrical)
- Set the top limit (electrical)

The process is also explained on the [one bolt derailleur setup page](/set-up-front-derailleur-limit-screw-adjustment-bolt-one-bolt-derailleurs/). 

### Let's get adjusting
The indoor bike that I used to grab these screenshots has the [FD-6870](/component/ultegra-front-derailleur-fd-6870-f/) installed, so I'll only set the Inner (top) limit using E-Tube Project. If you have a newer front derailleur installed the process is similar, but do pay attention to the Shimano help texts.

![Adjust your front derailleur intro](https://assets.bettershifting.com/adjust_fd_etube4_text_e31122f286.jpeg)

Once you open the front derailleur adjustment page you'll see a notice telling you to adjust the bolts first. It'll also highlight the help icon at the top.

![Adjust your front derailleur help text](https://assets.bettershifting.com/adjust_fd_etube4_elp_text_dbeef3213e.jpeg)

Click OK to continue and it will tell you to move the derailleurs to the indicated position.

![Adjust your front derailleur will move by itself](https://assets.bettershifting.com/adjust_fd_etube4_move_fd_4d71bc47ec.jpeg)

Once again, you can't.

The app will do this for you after you click next.

![Adjust your front derailleur turn the cranks](https://assets.bettershifting.com/adjust_fd_etube4_rotate_crank_e30a030358.jpeg)

After the derailleurs have moved to the correct position you'll see this screen:

![Adjust your front derailleur adjust it](https://assets.bettershifting.com/adjust_fd_etube4_inner_changed_9b10ff892b.jpeg)

It shows you the current adjustment value and provides a bit of guidance on how to set up the derailleur.  This is a good starting point, but you may have to do some more tweaking later. Set the derailleur up with the indicated **0 - 0.5mm of clearance** and click next. 

E-Tube Project will now save the settings.

![Adjust your front derailleur saved](https://assets.bettershifting.com/adjust_fd_etube4_saved_08fb9d3d1d.jpeg)

## Done! Derailleurs set up and adjusted
The steps as described on this page should give you a pretty good starting point. They are by no means set in stone, so feel free to play around a bit and see what works best for you.

Any questions or comments? You can either [send me an email](/contact/) or leave a comment below. Thanks!





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Learn how to set up your di2 front derailleur electrical limits and index or micro-adjust your di2 rear derailleur using E-Tube Project 4.

Index Rear Derailleurs and set Front Derailleur limits using E-Tube Project

In 2009 Shimano released the DURA-ACE 7970 series - the company's first Di2 groupset. It uses a five-wire protocol and plug and therefore none of these components are compatible with any of the other Di2 series - you simply cannot plug them in.

Front Derailleur (2x)

DURA-ACE FD-7970

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Specifications

Related components

Related pages

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

Index Rear Derailleurs and set Front Derailleur limits using E-Tube Project

Manuals & other documents