The shimano capreo f700 9 spd cassette for the capreo groupset hyperglide sprockets have a computer designed tooth configuration with contoured shift gates resulting in a crisp smooth shift even under load the close ratio gearing allows a more efficient use of energy through finer cadence control sprockets are cut away and drilled to reduce weight without reducing rigidity pearl bright finish offers hard wearing resistance to corrosion for super narrow 9 speed hg chains