Shimano cs 5700 105 10 speed cassette
High performance 10 speed 105 road cassette hyperglide sprockets have a computer designed tooth configuration with contoured shift gates resulting in a crisp smooth shift even under load close ratio gearing allows a more efficient use of energy through finer cadence control largest sprockets are mounted on a lightweight alloy carrier to reduce weight and increase rigidity sprockets are cut away and drilled to further reduce weight without reducing rigidity nickel plated finish off