Shimano Ultegra CS-R8100 Cassette (Silver) (12 Speed) (Shimano 11/12 Speed) (11-30T)

Shimano Ultegra CS-R8100 Cassette (Silver) (12 Speed) (Shimano 11/12 Speed) (11-30T)
In Stock Online
Usually ships in 24 hours
FREE Shipping Eligible! Learn More
This item earns up to 112 VIP Reward Points Learn More

The Shimano Ultegra CS-R8100 Cassette brings Hyperglide+ technology to the road. Hyperglide+ allows for better shifting under load so it is no longer necessary to ease up on the pedals when making a shift. For simple compatibility, Shimano 12-speed road cassettes fit on the same hub body as 11-speed road cassettes. This allows riders to use their current wheels for 12-speed. Shimano also managed to add the extra sprocket without increasing the total weight of the cassette.


  • Faster, seamless shifts under maximum pedaling load
  • Refined 12 step gear combination provides peak efficiency and accelerating performance for every situation
  • Compatible with 12-speed and road 11-speed freehub bodies
  • Compatible with Shimano Di2 12-speed road derailleurs

Type: Cassette
Speeds: 12 Speed
Drive Type: Shimano/SRAM (11/12 Speed HG)
Color: Silver
Weight: 291g (11-30T), 345g (11-34T)

Sprocket Configuration:

  • 11-30T: 11-12-13-14-15-16-17-19-21-24-27-30T
  • 11-34T: 11-12-13-14-15-17-19-21-24-27-30-34T

Check out our full selection of Shimano Ultegra 12 Speed Di2 Parts.

This product was added to our catalog on June 28, 2022