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Shimano

Shimano Compatible 12 Speed Road Cassette - 105/Ultegra Style 11-30T 11-34T 11-36T HG Freehub

Shimano Compatible 12 Speed Road Cassette - 105/Ultegra Style 11-30T 11-34T 11-36T HG Freehub

¥14,877 JPY
¥14,877 JPY ¥14,877 JPY
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Unlock Smoother 12-Speed Shifting Without the Premium CostUpgrading to 12 speeds but genuine Shimano cassettes are too expensive? Rough shifts, noisy drivetrain, or lacking low gears for climbs? This high-quality compatible cassette delivers near-OEM performance – crisp Hyperglide-style ramps, durable nickel plating, and wide ratio options for better range.Perfect HG freehub fit for 105/Ultegra level systems. Lightweight alloy/spider construction keeps rotating weight low for quicker acceleration. Choose 11-30T (racing), 11-34T (all-round), or 11-36T (climbing) to match your riding style.Easy install, reliable long-term shifting. The smart way to go 12-speed in 2026!
Key Benefits:
  • Smooth & Precise: Refined tooth profiles for quick, quiet shifts like original Shimano.
  • Wide Range Options: 11-30T to 11-36T – race fast or conquer hills effortlessly.
  • Durable Build: Nickel plated steel cogs resist wear and corrosion.
  • Lightweight Design: Optimized for efficient power transfer and responsiveness.
  • Amazing Value: Pro-level 12s performance at budget pricing.
Full Specifications:
  • Compatibility: Shimano 12-speed road (HG freehub, 105 R7100 / Ultegra R8100 level)
  • Speeds: 12-speed
  • Ratios Available: 11-30T, 11-34T, 11-36T
  • Material: Steel cogs with alloy spider/carrier
  • Finish: Nickel plated
  • Weight: Approx 280-350g (depending on ratio)
  • Hyperglide Compatible: Yes (smooth ramping)
  • Suitable For: Road bikes, gravel, endurance
Lockring included.

Original CS-R8100 R8101 Cassette For 12 Speed Road Only.

Model CS-R8100-12 / CS-R8101-12

CS-R8100 is same product with CS-R8101.

JUST the model  name updated by SHIMANO company.

Series ULTEGRA R8100
Average weight 291 (11-30T) 345 (11-34T)
Type HYPERGLIDE+
Rear transmission 12
Compatible chain HG 12 speed
Combination name (group name) 11-30T 11-34T
Combination | 1 11-12-13-14-15-16-17-19-21-24-27-30T | 11-12-13-14-15-17-19-21-24-27-30-34T
Spline type|HG spline L2 (ROAD 12-speed dedicated) ✔



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