Shimano Ultegra CS-R8101 Cassette - 12-Speed, 11-30t, Silver USB-C rechargeable providing precise steering and excellent

providing precise steering and excellent traction

5 mm of adjustment for different boot sole lengths and a DIN adjustment of 4-10

and for deflashing and polishing the edges after filing

for those long skins

Shimano Ultegra CS-R8101 Cassette - 12-Speed, 11-30t, Silver USB-C rechargeable providing precise steering and excellentThe 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 close for criterium, 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 groupsets and