Originally Posted by
choddo
You can also get 12 speed Shimano Ultegra 6800 and DA7810 (if you like setting fire to piles of cash) Di2 for rim brakes. I just upgraded my 2019 bike to the former a week ago. It has not been ridden since because I don’t want to get it dirty.
Will 12sp Di2 or Sram even fit on a 130 spaced frame? And does it need special wheels or freehubs? I just haven't kept up on this as I'm getting too old to even need such an upgrade. That shifting difference isn't going to get me around the park any faster, but riding the trainer all winter might.