SKU: 35526563217

Shimano Ultegra CasSette Sprocket, CS-R8101, 12-Speed (11-34T)

$3888.00 $4320.00
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

Shimano Ultegra CasSette Sprocket, CS-R8101, 12-Speed (11-34T)Shimano Ultegra CS R8101 12 cassette The Shimano Ultegra CS R8101 cassette is characterised by seamless shifting processes that not only ensure quiet cruising, but also allow the rider to devote their full concentration to climbs and sprints. This is made possible by the Hyperglide+ technology which has already been able to convince in the MTB segment with smooth shifting processes in both directions across the entire gear range. Even under maximum

Shimano Ultegra CS-R8101-12 cassette

  • The Shimano Ultegra CS-R8101 cassette is characterised by seamless shifting processes that not only ensure quiet cruising, but also allow the rider to devote their full concentration to climbs and sprints. This is made possible by the Hyperglide+ technology which has already been able to convince in the MTB segment with smooth shifting processes in both directions across the entire gear range.
  • Even under maximum effort or in a direct duel with the opponent, smooth upshifting and downshifting can be realised, while larger teeth maintain maximum efficiency. And the 12-speed cassette is even compatible with Shimano's previous 11-speed freewheel bodies.
  • Sprocket ratios: 11-12-13-14-15-17-19-21-24-27-30-34 teeth

    Hyperglide+

  • The conventional Hyperglide technology ensures smooth shifting upwards thanks to small shifting ramps, which guide the chain towards the next larger sprocket. Also Hyperglide+ uses this functionality but applies it in the opposite direction, too, preventing the chain from falling down when shifting downwards. The result is a smooth and consistent shifting in both directions, free of vibrations and without disrupting the cadence.
    • Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 35526563217

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    Kindle Customer
    New York, US
    ★★★★★ 5
    Daughters birthday present
    Color: White, Size: 3-Layer
    My daughter really liked it!!
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    Reviewed in the United States on May 9, 2026
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    Felicita marin
    Cuba, US
    ★★★★★ 5
    Me llego muy bien sin dañarlo muchas gracias
    Color: White, Size: 3-Layer
    Simplemente puedo decir excelente trabajo
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    Reviewed in the United States on May 11, 2026
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    Diana
    Birmingham, US
    ★★★★★ 5
    Great buy!
    Color: White, Size: 3-Layer
    Extremely impressive! BUY IT ! I love jewelry and I appreciate the compartments it has to keep me organized 🥰
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    Reviewed in the United States on October 7, 2025
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    Julie
    Omaha, US
    ★★★★★ 4
    Nice
    Color: White, Size: 3-Layer
    Nice and well made
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    Reviewed in the United States on May 6, 2025
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    Pat Leonard
    Birmingham, US
    ★★★★★ 5
    Happy
    Color: White, Size: 3-Layer
    Perfect setup to keep organized
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    Reviewed in the United States on September 4, 2025

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