Shimano CS-R7100 105 12-Speed Cassette Product Size:11 - 34 teeth The size allows for storage

The size allows for storage of nutrition

Allows safe mounting of 2 standard threaded CO2 cartridges per bracket

The upper bib incorporates a modesty panel composed of mesh to allow efficient air circulation and temperature regulation

Zinc-Alloy plated outer links

Shimano CS-R7100 105 12-Speed Cassette Product Size:11 - 34 teeth The size allows for storageHigh 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