I'm still riding a bike that has1st Generation Di2 so not sure about the new and current generation of Di2.
If I buy a bike that has Ultegra 8070 and I want to upgrade all or certain parts to DA 9170 - the internal wiring is cross compatible correct - no differences? All I would need to buy would be shifters/derailleurs and such - no additional wiring would be needed or swapped out?
If I buy a bike that has Ultegra 8070 and I want to upgrade all or certain parts to DA 9170 - the internal wiring is cross compatible correct - no differences? All I would need to buy would be shifters/derailleurs and such - no additional wiring would be needed or swapped out?