Originally Posted by
choddo
“brake” not “break”
I’d have thought just swapping the mechanical lever and cassette (for a 2x 12speed) would work. I don’t know if mixing Di2 and mechanical is possible (the front mech has autotrim based on the rear selection for example, not to mention the auto and semi auto shifting) but I don’t think it’s wise.
I don’t see what difference it would make whether you trim the FD manually or the system does it automatically, as long as the front has trim capability. If the chain rubs the FD, you trim - what does the rear shifting care
how it’s done?
unless the DI2 system baulks at the absence of an FD - they’re connected, after all 🤔