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.
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
Art's Cyclery: Yes, you have it right Martin.
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: 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.
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.
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.
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?
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.
punkuk1979: 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?
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.
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: 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 :)
Hair Do: Thanks for the tip. I do know it's hard to earn money. But it is much better than working minimum wage at mcdonolds. Being an hair stylist does get tips and I end up making decent money. Plus it allows me to be creative sometimes and make customer's dream come to reality.
How to Adjust Shimano Di2 Front Derailleurs4.9
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