How To Adjust Shimano Di2 Front Derailleurs




What do you think about this video?

Barbara Arnold: Really great video. Thank you! Really helped me understand why my Di2 was having shifting/dropped chain issues. Problems?---solved!!

Brent Mcdonald: Thank you for this perfectly done video. It solved my problem. I applaude how you kept it nice and short.

Gi tri: I have an issue on my small to big ring shifting. I recently switch from Shimano 6750 to a Rotor 3D crank w/ BOR chainrings. When I shifted from small to big w/ the Shimano, it worked flawlessly. Now, it takes about 2 revolutions for the big chainring to "pick up" the chain. It causes the chain to rub against the BB shell and it's not a good sound at all. What gives? Solution? Thanks!

Kash Hussain: Hi there. Great vid. I have a question. New to Ultegra Di2. First ride yesterday. Very smooth except I noticed if im in the top gog on the back and the bottom on the front and wish to change up to the top gog on the front the derailleur moves to the right but the chain tries to go up and fails so ends up staying on the bottom. Any suggestions would be greatly appreciated.

Art's Cyclery: Glad you liked the video. It doesn't matter what gear the rear derailleur is in when aligning the front derailleur because trim won't affect alignment. I prefer to have the front derailleur shifted into the small ring and then adjust it so that the outside of the cage is parallel with the big ring.

George Rodgers: Where should the rear derailleur be (gear) when doing the front derailleur? PS Nice video! very informative :)

Art's Cyclery: It is possible to bend the aft part of the front derailleur cage, however I would recommend being very careful when doing this. Also, this may not fix your problem entirely as it is nearly impossible to get the Osymetric chainrings to shift flawlessly.

Andrew Johnson: Hi, I am wondering if you can help. I have a Di2 9070. When I shift to the smallest chain ring at the front and to the largest chain ring at the rear, within 5 seconds the rear derailleur automatically shift to the next lower gear. Is this a realignment issue? Thanks,

Steve Webb: I have Osymetric chainrings and have always had issues with them rubbing on the cage (Or the outer ring) when using the small ring this leads to very limited gear options. Is it possible to widen the cage on a Di2? And if I can widen the cage will the Di2 be able to move the cage enough to effectively switch from the large to the small chainring? i assuming that the measurement taken from the top of the chainring is still 1-3mm from the high point (TDC) on the Osymetric? Thanks

Cycle Tech: Hi Daniel, thanks for the video, When you are adjusting the stop screws, should you be in the low gear on the rear when adjusting low on the front and be in the high gear on the rear when adjusting the high stop on the front? Can't see on this Video Martin

Art's Cyclery: Sorry for the slow response, I have been out of town. It sounds like your derailleur might be positioned too high. Make sure that the bottom edge of the outside of the derailleur cage is 1-3mm above the large chainring when the derailleur is shifted into the small chainring. Rotational alignment may be off as well. Make the outer cage parallel with the big ring. The last thing to check is your limit screws because these can change the way the front derailleur will automatically trim.

Art's Cyclery: It sounds like the problem is with your shifter body not engaging the cable. De-greasing/cleaning and re-lubricating the shifter body will hopefully solve the problem. We have a video coming out on Friday that will go over exactly that. Check back Friday or subscribe to our channel and learn how to fix your issue.

Art's Cyclery: Yes, you have it right Martin.

Art's Cyclery: This could be a variety of things, check to make sure the derailleur is positioned 1-2mm above the large chainring, that the cage is parallel with the chain, and that when the bike is in the lowest gear (small chainring in front, and large cog in rear) the low limit is set so that the derailleur cage is just barely not touching the chain.

caliljv: Thanks for the video. Have a problem with my front derailleur. have shifter brake, 24 speeds, when i move left brake lever, it does not engage. wire is fine, front derailleur moves manually, Is there an adjustment for brake shifter lever so it engages. What could be wrong? Is the brake lever damaged or front derailleur? Thanks for help

Emma Lorenzen: Daniel I have a question: I have a Di2 system. When driving in the 7-8-9 gear (i.e large chainring in the front) the chain chafes against the cage of the front derailleur due to the angle of the chain. At the extremes i.e lowest and highest gear it is fine.

Art's Cyclery: The problem is associated with the rear derailleur, it could be either of the following (or a combination of both). It is more likely an indexing problem as Di2 will over shift to give the chain an extra push to get up to the larger cog, then move back slightly to reduce noise. It sounds like the over shift is what is pushing the chain to the largest cog and when it is in the normal position it wants to be in the 2nd cog. Part of the problem could also be the low limit screw is set too far in.

Rating:
How to Adjust Shimano Di2 Front Derailleurs 4.8 out of 5

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How to Adjust Shimano Di2 Front Derailleurs