Shimano Dura-Ace R9270 Di2 2x12 groupset, consisting of: - 1 x Shimano Dura-Ace crankset (FC-R9200) - 1 x Shimano Dura-Ace Di2 rear derailleur (RD-R9250) - 1 x Shimano Dura-Ace Di2 front derailleur (FD-R9250) - 1 x Shimano Dura-Ace Di2 shift/brake levers pair (ST-R9250) - 1 x Shimano Di2 battery (BT-DN300) - 1 x Shimano Di2 charging cables (EW-EC300) - 1 x Shimano Dura-Ace cassette (CS-R9200) - 1 x Shimano XTR Quick-Link chain (CN-M9100) - 1 x Shimano Dura-Ace brake pair (BR-R9200), front and rear - 1 x Shimano aluminum cassette lockring - 1 x Shimano main link - 1 x Shimano TL-EW300 cable tool - 1 x Shimano crank bolt - 1 x 10.5 mm caliper bolt for rear friction brake - 1 x 18 mm caliper bolt for front friction brake - 1 x 27 mm caliper bolt for