12 Speed Cassette - CS-R7101 105 12-speed cassette 11 - 34 teeth Stems Brakes will be adjusted to

Brakes will be adjusted to optimum performance

Largest sprockets are mounted on a lightweight alloy carrier to reduce weight and increase rigidity

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Specific to your model and size

Remove existing tube

12 Speed Cassette - CS-R7101 105 12-speed cassette 11 - 34 teeth Stems Brakes will be adjusted toHigh performance Hyperglide+ 12 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