The Shimano Ultegra R8000 components feature the technology of the Dura-Ace R9000 components, Shadow rear derailleur technology, a new front derailleur mechanism, a lighter crankset and a wide range of gear ratios.
Shimano spare part Ultegra CSR 8000 and CS 6800 cassette, 13-tooth sprocket for cassette ranges 11-25, 11-28, 11-30, 11-32 teeth
Shimano spare part Ultegra CS R8000 and CS 6800 cassette, 16-tooth sprocket for cassette ratios 11-23 / 11-25 / 12-25 / 14-28 teeth
Original Shimano Ultegra bottom bracket, SM-BBR60, for Hollowtech II road bike cranksets, BSA thread, 68 mm installation width
Shimano spare part: tension spring seal, p-seal ring for the tension spring of the Dura-Ace R9100, Ultegra RX80 / R8000, GRX RX815/12/10/20 and XTR M9120 / M9000 rear derailleurs