Shimano Ultegra CS-6600 Cassette
Hyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load. The three 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
- Chrome-plated steel cassette lockring
- For Super Narrow 10-speed HG chains
- Close ratio gearing allows a more efficient use of energy through finer cadence control
- Ratio: 15-16-17-18-19-20-21-22-23-25
- Weight: 235g for 11 - 23T