SHIMANO DURA-ACE DI2 9070 £2499

Until the advent of eTap, Shimano’s Dura-Ace 9070 Di2 had been the standard on which all electronic groups were judged, the mix of beautifully engineered parts and no-nonsense operation being hard to beat. With Shimano recently announcing the successor to 9070 (9100) it shouldn’t be long before you’ll find some bargains on what is a truly exceptional drivetrain. The new Dura-Ace Di2 (9100) offers a maximum cassette of 11-30 using the new Shadow design RD9150 mech, up from the 28 on the 9070 and close to eTap’s 11-32 option.