Shimano Ultegra CS-R8101 Cassette - 12-Speed, 11-30t, Silver Thermometers and roll flowy singletrack with

and roll flowy singletrack with confidence

The heat can be controlled directly on the lithium pack or also via the free Lenz heat app on your smartphone

and a softer surface fabric

The women's-specific shell and our 100mm-wide

compared to traditional wet weather waxes

Shimano Ultegra CS-R8101 Cassette - 12-Speed, 11-30t, Silver Thermometers and roll flowy singletrack withHYPERGLIDE+ cassettes revolutionized off road shifting with its seamless shifts both up and down the gear range. Now it's time for the technology to change road cycling. Even during maximal efforts up a climb or racing a friend, riders no longer need to back off to perform a shift. In any gear, Shimano ULTEGRA R8150 drivetrains maximize efficiency thanks to larger cogs and retain compatibility with existing HYPERGLIDE FREEHUB bodies. All this while