Thread: Removing a rear wheel with DI2
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Old 04-07-21, 11:14 PM
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Badger6
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The OP is correct, the most current Di2 RDs (RD-R8050, RD-R9150, RX815) will not permit the system to cross-chain small/small...big/big is possible. When in the small chainring, the RD will not permit shifting below the 3rd cog, it's hard wired in the brain on the battery.

Originally Posted by 55tele
what is the best procedure??
OP, I shift to the big ring, and the smallest (1st) cog and manually articulate the cage forward (NOT LEFT toward the frame) as I drop the wheel. The chain will have enough length to permit this. It might require you to push/pull the wheel to get the cassette past the upper jockey wheel on the cage, but if you're gentle and give even pressure while doing it, it will get past without any ill effect. If you have a clutch, disengage it.
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