Shimano 105 CS 5700 10 Speed Cassette. Shimano's reputation as a heavy hitting drivetrain component manufacturer pretty much speaks for itself, and the 105 CS 5700 Cassette is no exception to their commitment to quality. This 10 speed road cassette falls right in the middle of their lineup, giving you exceptional performance at an everyman price. The Hyperglide sprockets deliver exceptional shifting courtesy of their shift ramps and tooth profiles plus are drilled out to shave precious grams. Even more weight is reduced by having the three largest cogs mounted to an alloy carrier. Completely compatible with Shimano or SRAM 10 speed drivetrains.