Shimano 105 cassette Brand new never used 25/12 ratio

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Shimano 105 cassette Brand new never used 25/12 ratio

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.
Pearl-bright steel cassette lockring.
For Super Narrow 10-speed HG chains.