The aluminum alloy CNC is integrally formed, with a tooth loss design, and precise gear shifting. Vacuum electroplating silver, three-layer vacuum electroplating, rust-proof and dust-proof are greatly improved. CNC hollow design, lighter weight, hollow out mud. This 11 speed cassette is an ideal choice for mountain bike riders who want the simplicity of a 1x11 drivetrain, yet still, have a wide range of climbing gears. Offering you great value for money, it enables you to clean up your handlebars and frame by losing the front shifter and mech, all without the expense of an expander sprocket. Note: Under the premise, it must be matched with conventional cassette hub body Model: Road bike flywheel Material: Chrome-molybdenum steel (nickel-plated surface) Speed: 11 speed Gear ratio: 11 Speed 28T: 11-12-13-14-15-17-19-21-23-25-28T (Silver 304g) 11 speed 28T: 11-12-13-14-15-17-19-21-23-25-28T (gold 314g) 11 Speed 32T: 11-12-13-15-17-19-21-23-25-28-32T (Silver 316g) 11-speed 34T: 11-12-13-15-17-19-21-23-25-28-34T (Silver 372g) 11 speed 36T: 11-13-15-17-19-21-23-25-28-32-36T (Silver 468g) 11 Speed 40T: 11-13-15-17-19-21-24-28-32-36-40T (Gold 543g) 11 speed 42T: 11-13-15-17-19-21-24-28-32-36-42T (gold 554g 11-speed 50T: 11-13-15-18-21-24-28-32-36-42-50T (gold 613g) 11 speed 52T: 11-13-16-20-24-28-32-36-40-46-52T (silver black 704g) Color: As pictured 11-speed, compatible with SHIMANO 105 5800 ULTEGRA 6800 6870 R7000R8000 and SRAM, Suntech sensah, LTWOO blueprint, microshift and other 11-speed road kits (note that it must be a Japanese standard HG cassette hub freehub) Package: 1xVariable speed Cassette Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.