With its Beam Spider construction, the new Shimano Deore XT M8100 12-speed cassette shaves weight while increasing Shimano’s MTB gearing range another gear. Using Shimano’s new Micro Spline freehub body and Hyperglide+ tooth profile, these 10-45 and 10-51T cassettes deliver advanced shifting performance.

Details:

• Definitive shifting performance
  • New shift ramp designs provide the fastest, smoothest shifts by HYPERGLIDE+
    • Beam Spider
  • Lighter and stiffer construction
  • Reduces cassette inertia resulting in faster acceleration and increased chain security
• Micro Spline
  • 10T lowest sprocket realized by new FREEHUB body construction
• Wide range and close step 12-speed drivetrain

Specs:

• Cassette Cogs: 10-45t: 10-12-14-16-18-21-24-28-32-36-40-45
• Cassette Cogs: 10-51t: 10-12-14-16-18-21-24-28-33-39-45-51
• Compatible Chain: HG 12-SPEED
• Series: XT
• Generation: M8100
• Number of Speeds: 12
• Finish: Anodized
• Weight: 10-45t: 461 grams
• Weight: 10-51t: 470 grams