Originally Posted by zachv81

Good to know. I’m about to embark on my first DI2 setup and want to think everything through the first time.

Maybe I’m not looking correct, but I don’t see the RX800 DI2 on the Shimano website. Is the GRX DI2 the current replacement for this? If that is the current replacement it looks like that should work good with the current Ultegra and DA DI2 correct?