High quality 10 speed gearing with close ratio sprockets and Hyperglide design for efficient shifting

Features:
• High performance 10-speed 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
• Six 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
• Chrome-plated finish offers hard wearing resistance to corrosion
• Chrome-plated steel cassette lockring
• For Super Narrow 10-speed HG chains