Shimano Ultegra 6700 10-Speed Cassette Top-Tier Performance, Mid-Tier Price Shimano's Ultegra series has long been the standard for high-tech components with a reasonable price tag. Utilizing much of the technology found in Shimano's top-end Dura Ace group, Ultegra doesn't disappoint when it comes to performing at a high level. This Ultegra 6700 cassette uses an aluminum carrier for the three largest cogs, as well as machined holes in the cogs themselves-all adding up to a significant weight savings over lower-tier cassettes. Refined shift ramping and Hyperglide (HG) technology improves shift quality throughout the cassette range. Features Aluminum carrier for three largest cogs saves weight Hyperglide chain compatible Improved shift ramps provides quality shifting throughout the range Machined holes in the 8 largest cogs saves weight Specifications Cassette Body Type Shimano/SRAM 8, 9, 10-Speed Drivetrain Speeds10Cassette Material Steel with aluminum spider Chain Compatibility Shimano Hyperglide 10-speed Ranges Available11-25, 11-28, 12-25, 12-30Weight Approximately 238 grams (for 12-30t) | Shimano | Ultegra Cs-6700 10Sp Cassette 11-28T