Shimano 105 CS-5700 Cassette 10S 11-25 drumbeat21-173 '1-by' only drivetrains

'1-by' only drivetrains

full titanium hardware and our adjustable SuperNatural Fit Kit

Includes four circlips for installation

easy changes as conditions demand

Shimano 105 CS-5700 Cassette 10S 11-25 drumbeat21-173 '1-by' only drivetrainsHigh 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