The Shimano 105 5800 cassette is a high performance road cassette with hyperglide EV sprockets that have a computer designed tooth configuration. These have contoured shift gates, resulting in a crisp smooth shift even under load.
High performance HG-EV 11-speed 105 Road cassette
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
Pearl-bright steel cassette lockring
For Super Narrow 11-speed HG-X chains