The lightest 9-speed cassette available.

• 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.
• Four largest sprockets are mounted on a lightweight alloy carrier to reduce weight and increase rigidity.
• Largest sprockets are made from titanium to reduce weight without sacrificing strength.
• Sprockets are extensively cut away and drilled to further reduce weight without reducing rigidity.
• Nickel-plated finish, offers hard wearing resistance to corrosion.
• Alloy cassette lockring.
• For use with, Super Narrow 9-speed HG chains.
• Sizes: 11-21t, 11-23t, 12-21t, 12-23t, 12-25t, 12-27t.
• Weight: 160g (12 - 23t).