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Di2, Not changing to big chain ring?


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Sorry LK

Beat me to it, why would you go back to mechanical if u have DI2??

 

Yes charge the battery

And it might need a little adjustment, on the FD

Or abit of both

cheers

Ip

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Shift the rear deraillure the full range up and down a few of times then try the front shifter again. If this doesn't do anything then it might be power to the front switches. Hold the front shift button on and see if there is a battery light, if not then it must be the front deraillure switch cable disconnected. If the battery light goes on then it's the power to the actual deraillure.

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Di2 is funny in that is doesnt work or interact the way we think it should.

 

I had a plug come loose from my front derailleur cable at the shifter end. I couldnt figure out why it wouldnt change yet the derailleur would still trim.

 

It appears the front derailleur was getting its trim signal via the rear derailluer and brains and not having the front shifter plugged in had no effect on this,, confused me for a while.

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There are some waterproof plastic casings that should be put around all the joins/plugs and sealed with a lighter that many mechanics neglect to do. If they aren't sealed water/drinks etc can get in and cause corrosion which results in the signal not getting through. Is reccomend everyone with Di2 to make sure it is done. I had 2 different guys do di2 builds and both neglected to do it.

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