Ultegra R8100 Di2 12 Speed Disc Groupset w/- 170mm cranks 2022 FREE shipping within Australia In stock. Available via Click and Collect or Buy Online Share Loading Facebook Like button... Ultegra R8100 Di2 12 Speed Disc Groupset w/- 170mm cranks 2022 FREE shipping within Australia In stock. Available via Click and Collect or Buy Online Share Loading Facebook Like button...