Originally Posted by
vision646
Maybe this has been discussed but I'm only on page 10 of this behemoth. Can you run a 53/34 chain ring with di2, preferably with an 11-28? I've heard that the reasons not to do this with mechanical groups is shifting quality tends to suck, but can di2 account fix that? Thanks.
On an 11 speed Shimano crankset, with the proprietary BCD, I expect that would more or less work. It would be a major clunk from one chainring to the other but the di2 FD will definitely push that chain over to where it needs to be.
If not on 11 speed Shimano, I think it would be a mess. A 53T chainring on 110 BCD will be too flexy for the electric FD.
... also the RD will need a lot of capacity, I'm not sure the di2 RD has enough, that is probably the more critical issue.