Shimano XT M8100 12-speed 10-45 Micro Spline MTB cassette

The Shimano XT CS-M8100-12 MTB cassette has 12 speeds and a 10-45-tooth range. It is designed for those with a wheel featuring a Micro Spline freehub body who want gearing for steep climbs and fast sections.

• Gearing for climbing and fast descents, with a 10- to 45-tooth range
• 12 speeds to always find the right gear, with close-ratio shifts
• Weighs 461 g in the 10-45 version, according to the manufacturer
• Large aluminum sprockets and small plated steel sprockets for durability
• Requires a Micro Spline freehub body and an HG 12-speed chain, such as the CN-M8100

Technical specifications

• Model: XT CS-M8100-12, 12 speeds, 10-45 range
• Speeds: 12
• Teeth: 10-12-14-16-18-21-24-28-32-36-40-45
• Weight: 461 g (10-45 version)
• Materials: Sprockets 1-10 in plated steel; sprockets 11 and 12 in anodized aluminum; sprocket carrier in painted aluminum; lockring in anodized aluminum
• Freehub compatibility: Shimano Micro Spline (12-speed)
• Recommended chain: HG 12-speed, e.g. CN-M8100
• Color: Black/Silver
• Manufacturer code: I-CSM8100045
• Package contents: 1 Shimano XT CS-M8100-12 cassette; 1 aluminum lockring