Shimano Ultegra CS-R8101 Cassette - 12-Speed, 11-34t, Silver tubeless These boots are rich with

These boots are rich with features and the base of every other brand's design

and the toe and heel welts accept most automatic crampons

so wide feet should look elsewhere

The non-rotating alpine heel increases power transmission so you can drive larger and heavier touring skis with ease

Optimized for breathability and protection

Shimano Ultegra CS-R8101 Cassette - 12-Speed, 11-34t, Silver tubeless These boots are rich withThe Shimano Ultegra CS R8101 road cycling cassette in 11 30T delivers 12 speed performance for riders building or upgrading to Shimano's current generation road drivetrain. The tighter 11 30T range keeps gear steps closer together for criteriums, road racing, and fast group rides where cadence consistency is a priority. Hyperglide+ tooth profiling supports smooth, precise shifts under load in both directions. Compatible with Shimano 12 speed road