X
1.800.651.4050 Mon-Sat 8am-5pm PT
FREE SHIPPING ON ORDERS OVER $50More info
JOIN OUR EMAIL LIST
Search
WISH
0
CLICK HERE to join our Email List and get 15% off your first order*
*Restrictions Apply. Click for details.

Crumbs

Product Images

Shimano Ultegra CS-R8100 12-Speed Cassette
Shimano Ultegra CS-R8100 12-Speed Cassette
Click to zoom
Shimano Ultegra CS-R8100 12-Speed Cassette 1
Shimano Ultegra CS-R8100 12-Speed Cassette 2

Shimano Ultegra CS-R8100 12-Speed Cassette

Pricing and Order Section

Mfg PartNum: ICSR810112134
rating(6 customer reviews)
Earn $3.54 in Rewards credit. Click to Learn More.
354
POINTS
set $117.99
MSRP: $117.99
SAVE
Special Order
This model is not eligible for Rewards points
Price matches are is not eligible for Rewards points
This item is currently not in stock but is available to purchase today as a backorder. It is expected 10/20/2024 and will be shipped when available.
pricematch tag
InstantPrice MatchWhat is this?
Qualifies for Free Shipping!
 

Description

Meet the New Paradigm in Road Shifting

The uninterrupted shifting experience of the Ultegra 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.

Hyperglide+ cassettes already revolutionized off-road engagement with seamless shifts up and down the gear range, now that technology has come to road cycling. Even during maximal climbing or sprinting efforts, riders no longer need to let up for precise shifting. In any gear, Shimano Ultegra R8150 drivetrains maximize efficiency thanks to larger cogs and retain compatibility with existing Hyperglide freehub bodies. All this while increasing to 12-gears.

Experience the new paradigm in road shifting with Ultegra R8100.

Features:

  • Refined 12 step gear combination delivers peak efficiency
  • Faster, smoother shifts under maximum pedaling force
  • Compatible with new 12-speed and road 11-speed freehub body
  • 12 speed Hyperglide+ technology
  • Available in 11-30t and 11-34t options
  • Chain compatibility: Shimano HG 12-speed
  • Weight: 291g (11-30T) 345g (11-34T)

    • B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

    Specifications

     

    Cassette Use: Road 

     

    Cassette Type: Shimano 12 

     

    Drivetrain Speed: 12-Speed 

     

    Gear Steps: 11-12-13-14-15-16-17-19-21-24-27-30T 

     

    Gear Steps: 11-12-13-14-15-17-19-21-24-27-30-34T 

    11/30 Tooth

    Mfg PartNum: ICSR810112130 

    11/34 Tooth

    Mfg PartNum: ICSR810112134 

    Reviews

    Ordered by Most Relevant First
    5 stars
    4 stars
    3 stars
    2 stars
    1 stars
    (6)
    (0)
    (0)
    (0)
    (0)
    (100%)
    (0%)
    (0%)
    (0%)
    (0%)
    Great cassette
    rating
    by OvisCapra
    Alaska

    Have used dura ace and ultegra cassettes for years and they have never let me down.

    Reviewed 2/9/2024
    Was this review useful to you? Yes/No
    Thank you for your feedback.
    12 speed
    rating
    by Anonymous

    Good product and great customer service

    Reviewed 9/19/2024
    Was this review useful to you? Yes/No
    Thank you for your feedback.
    Great Cassette
    rating
    by VTBiker
    Competitive Racer
    VT

    This is a nice upgrade over the 105 cassette without breaking the bank with the Dura-Ace. Easy to install with the proper tools, shifts great, nothing to complain about!

    Reviewed 7/19/2024
    Was this review useful to you? Yes/No
    Thank you for your feedback.
    A perfect replacement
    rating
    by Anonymous

    Good price, timely delivery and ready to be replace the exact same cassettes that I�m using

    Reviewed 7/16/2024
    Was this review useful to you? Yes/No
    Thank you for your feedback.
    Great cassette!
    rating
    by Anonymous

    Very light and affordable.

    Reviewed 3/14/2024
    Was this review useful to you? Yes/No
    Thank you for your feedback.
    Works well
    rating
    by BB in AZ
    AZ
    1 of 1 customers found this review helpful.

    Easy to install and setup Di2. Half the price of Dura Ace cassette

    Reviewed 9/5/2022
    Was this review useful to you? Yes/No
    Thank you for your feedback.

    Articles

    Articles will open in new tab.

    Comparing bottom bracket types and standards.
    You wanna go fast? Join the ceramic revolution!
    Keep things running smoothly on your road, mountain, or commuter bike.
    Make your upgrades count. Here's the equipment that will help you ride your bike faster.
    What to consider when selecting a crankset for your road bike.
    additional content loading
    additional content loading
    additional content loading