Shimano Ultegra Di2 groupset (mix of 6800 and 8000 series): 170mm 53/39t cranks with a 4iii powermeter (left side), 11-25t Cassette, 140mm Dura Ace rotors, 5 port junction box (for connecting ...

£3,499 with a Shimano 105 mechanical groupset whilst Enthusiast offers 105 Di2 for £4,099. Pro and Hero use Ultegra Di2 and Dura-Ace Di2 respectively with price tags of £5,499 and £7,999 - all ...