Di2 is working flawlessly with no excessive wear to the components.
Cervelo R3 SL 56cm Carbon Frameset Di2 - spares or repair
Cervelo R3 51CM frame Forks Seat Post
Shimano Dura-Ace SW-R9160 Dura-Ace Di2 Bar end shift switches for TT-bars. Pair.
SHIMANO Dura-Ace CS-R9200 Dura-Ace 12-speed cassette 11-30T
SHIMANO Cycling Cassette Sprocket, CS-R9100, Dura-Ace, 11-Speed, 11-12-13-14-15-17-19-21-24-27-30, Single Dura-Ace, 11-Speed, 11-30 - ICSR910011130
Shimano Dura-Ace RD-R9250 Dura-Ace Di2 12-speed rear derailleur E-tube
