Can any Di2 group use Y Cables now? Could I fit out my 6870 groups with them?
Fewer wires make me happy.
They always could, it's just Shimano didn't sell them. Easy enough to make them on a DIY basis with a steady hand, some heat-shrink, and a soldering iron.
@Brommers started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Can any Di2 group use Y Cables now? Could I fit out my 6870 groups with them?
Fewer wires make me happy.