I know that di2 ultegra can take a 40T cassette rather than just the 34T shimano say but any experience with 105 R7000 mechanical. Can that also take more or is the motor drive the key?
Yeah, before I converted my partner's Sequioa to Di2, we ran a shadow cage 105 derailler on it and used a 42 cassette with something like a 32/46 double up front.
I know that di2 ultegra can take a 40T cassette rather than just the 34T shimano say but any experience with 105 R7000 mechanical. Can that also take more or is the motor drive the key?