Groupset Shimano MT8120 Deore XT 12-SPD 170mm 32T 10-51T 203/180mm

12 Speed Technology

The new Shimano DEORE XT M8120 series features Shimano’s 12-speed versatility while offering superior shifting and braking systems specifically tuned for trail riders. New Shimano DEORE XT delivers unrivalled component customisation and Shimano’s widest range 1x12 gear options with its 12-speed 10-51T cassette.

 

Hyperglide+ Technology

Inheriting revolutionary HYPERGLIDE+ technology first found on XTR M9120, the DEORE XT M8120 group uses completely redesigned chain plates and shift ramps which guide the chain both up and down the cassette providing faster, smoother shifting in both directions even under incredible pedalling power.

 

Shimano Deore XT Threaded Bottom Bracket

The shimano deore xt bottom bracket uses high quality sealed bearings and is offered in threaded and pressfit options.

 

Crank and Chainrings

M8120 HOLLOWTECH II crank construction offers a lighter and stiffer crank design with options for both front single and double chainrings in three Q-factor options, including a Super Boost option (172mm, 178mm, 181mm). Chainrings are easily exchanged with the new direct-mount system and the cranks can be swapped between single and double front chainring setups. All Shimano 12-speed direct mount chainrings are interchangeable. Additionally, Shimano refined chain line specifications for DEORE XT M8120 including a 55mm chain line, ensuring that the drivetrain is optimized for a greater variety of frame designs.

 

Wide Range and Rhythm Step Cassettes

Enhancing ride performance and expanding gearing range, DEORE XT M8120 cassettes feature SHIMANO’s MICRO SPLINE freehub technology that works seamlessly, allowing the use of 10-tooth cogs. The new design with its smaller splines also allows for an aluminium freehub body construction that isn’t damaged or gouged out by the cogs during use.

 

Shifters and Levers

With ergonomics focused on comfort and control, the new DEORE XT RAPIDFIRE PLUS shift levers offer light operation force and better rider feedback. Shimano’s I-Spec EV lever design features greater flexibility in mounting while maintaining a clean cockpit. For double chainring systems, the lever simplifies front shifting with a lightweight and compact design that shifts up and down with a single mono lever

 

Braking System

Based on the SHIMANO XTR M9100 brake lever design, the new DEORE XT BL-M8120 brake levers feature a more inboard clamp position that creates an extra point of contact between the bar and the lever. This added bracing drastically increases efficiency and control over the bike while offering quick brake engagement. The new design minimizes impact on cockpit real estate, creating space between the clamp and support point for mounting other handlebar accessories.