- 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 offers hard wearing resistance to corrosion.