Shimano Sprocket Unit for Ultegra CS-R8100 Cassette - 17-19 Teeth | Y0NR98040

Pinion unit for the Shimano Ultegra CS-R8100 road bike cassette with a gradation of 11-34 teeth. The individual pinions are made of nickel-plated steel. For the 12-speed cassette with 11-30 teeth, the sprocket unit Y0NR98020 is required (sold separately). Scope of supply: 1 sprocket unit