Shimano Cs-r7101 105 12-speed Cassette 11-34t

High performance hyperglide 12-speed 105 road cassettehyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under loadclose ratio gearing allows a more efficient use of energy through finer cadence controllargest sprockets are mounted on a lightweight alloy carrier to reduce weight and increase rigiditysprockets are cut away and drilled to further reduce weight without reducing rigiditynickel-plated finish offers hard wearing resistance to corrosionpearl-bright steel cassette lockringfor super narrow 12-speed chains

High performance hyperglide 12-speed 105 road cassettehyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even