Shimano Deore XT Cassette M8100 12 speed Microspline 10-45t 10-51t Ratios CS-M8100

Description

Shimano Deore XT CS-M8100 12-Speed Micro Spline MTB Cassette — 10-45T or 10-51T

The Shimano Deore XT CS-M8100 is a high-performance 12-speed MTB cassette designed for smooth shifting, efficient cadence control, and lightweight durability — perfect for trail, enduro, and XC riders.

Built around Shimano’s Micro Spline freehub interface, this cassette delivers crisp, consistent shifting even under load, thanks to Hyperglide+ technology and precisely engineered tooth profiles.

Available in both 10-45T close-ratio for smoother cadence control or 10-51T wide-ratio for conquering steep climbs and technical terrain.

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Key Features:

✔️ Hyperglide+ Technology — Computer-optimised tooth profiles and shift gates for ultra-smooth shifting, even under load
✔️ Efficient Cadence Control — Close-ratio gearing for better energy use across all trail conditions
✔️ Lightweight Alloy Carriers — Reduces overall weight while increasing rigidity and strength
✔️ Weight-Saving Cutaways — Sprockets are drilled and cut away to reduce weight without compromising durability
✔️ Durable Chrome-Plated Finish — Hard-wearing and corrosion-resistant for long-lasting performance
✔️ Alloy Lockring Included

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Ratio Options:

🔧 10-45T (Close Ratio) — Ideal for efficient energy transfer and smoother cadence transitions

• Average Weight: 461g

🔧 10-51T (Wide Ratio) — Greater climbing range for technical trails and varied terrain

• Average Weight: 470g

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Additional Info:

• Speed: 12-Speed

• Discipline: MTB / Trail / Enduro / XC

• Freehub Type: Micro Spline

• Colour: Black/Silver

Compatible with all Shimano 12-Speed MTB chains.

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Why Choose Hopkinson Cycles?

✅ Free UK Shipping — No hidden fees
✅ Expert advice from real riders
✅ Family-run, independent business — Personal service, no faceless corporations
✅ Fast, reliable in-house dispatch

📞 Questions? Call us on 01924 274209
🌐 Shop more Shimano components at www.hopkinsoncycles.com

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Ride Shimano XT — trusted performance for every trail adventure.