Shimano Ultegra CS-R8000 11-speed Cassette

System engineered for use with the SHIMANO ULTEGRA R8000 groupset, the R8000 cassette is available in a wide range of road and mixed surface ratios. It is compatible with HG-EV and HG-X11 chains

• 5 largest cogs on alloy and composite spiders
• Light weight and high performance
• Aluminum lockring
• Nickel plated finish
• The 11-34 cassette (120615-07) is compatible with 10 and 11 speed freehub bodies (use 1.85mm spacer for 11 speed road)
• Other sizes are compatible only with 11 speed road hubs