SHIMANO Ultegra R8100 Cassette - 12-Speed - 11-34t - Discontinued wahoopromo The Speed Sensor 2 attaches

The Speed Sensor 2 attaches to the hub of either wheel and self-calibrates with your Edge cycling computer or compatible Garmin device to give you accurate speed and distance

Casual but on it

Meet the Instinct Carbon

suited to bikepacking

SHIMANO Ultegra R8100 Cassette - 12-Speed - 11-34t - Discontinued wahoopromo The Speed Sensor 2 attachesThe uninterrupted shifting experience of the Shimano Ultegra CS R8100 12 speed cassette range lets you climb, sprint, or cruise without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12 speed freehub bodies. Shimano HYPERGLIDE+ technology is integrated to provide seamless shifts both up and down the gear range. Refined 12 step gear combination provides