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  • Shimano XT M8100 1x12 Speed Groupset Builder Shimano XT M8100 1x12 Speed Groupset Builder

Shimano XT M8100 1x12 Speed Upgrade Kit


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Quick Overview


Availability: In stock


Price as configured: CA$0.00

Shimano XT M8100 1x12 Speed Upgrade Kit is available for purchase in increments of 1
1 x Shimano XT M8100 12 Speed Derailleur   +CA$159.00
1 x Shimano XT M8100 12 Speed Rear Shifter   +CA$79.00
1 x Shimano XT M8100 12 Speed Cassette (10-50T)   +CA$209.00
1 x Shimano XT M8100 12 Speed Chain (126 links)   +CA$59.00

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Shimano XT M8100 1x12 Speed Upgrade Kit is available for purchase in increments of 1

Price as configured: CA$0.00


The Deore XT M8100 is Shimano's newest weapon in search of mountain bike fun and adventure. As the first group of components designed specifically for mountain bikes ever, the Deore XT M8100 continues its success story based on high durability and reliable performance.

Scope of delivery - Shimano XT M8100 1x12-speed Groupset Builder

  • 1 Shimano XT SL-M8100 Clamp 12-speed Shift Lever right
  • 1 Shimano XT RD-M8100 12-speed Rear Derailleur SGS
  • 1 Shimano XT CS-M8100 12-speed Cassette incl. Lock Ring
  • 1 Shimano XT CN-M8100 12-speed Chain 126 Links incl. Connector Quick-Link SM-CN910-12

The original mountain bike group continues its legacy: XT M8100 1x12-speed Groupset from Shimano

The original mountain bike group continues its legacy of remaining the standard for mountain bikers everywhere. Nearly three decades in, the DEORE XT brand is defined by its trail-tested durability, reliability and performance. Recognizing that today’s mountain bikers are riding faster and confidently on more technical terrain, the legacy of DEORE XT is more important than ever. In 2019, our pinnacle mountain bike technologies will trickle down to SHIMANO DEORE XT M8100.

Shimano XT SL-M8100 Clamp 12-speed Shift Lever

The Shimano XT SL-M8100 12-speed Rapidfire Plus shift lever with clamp construction features a lightweight, ergonomic and compact design. In addition to the shifting behavior, the performance also increases. With 20 % quicker lever access time and 35 % less force. Enhancing lever access and shifting speed, the new RAPIDFIRE PLUS shift levers offer light operation force and more versatility. Shimano’s new I-Spec EV lever design features greater flexibility in mounting for a clean and ergonomic cockpit. And for double chainring systems, the lever simplifies front shifting with a lightweight and compact design that shifts up and down with a single lever.


  • 20% quicker lever access time
  • Compact design and lightweight
  • Quicker lever access and light operation force maintains rider concentration
  • Greater flexibility and action-optimized cockpit layout
  • 2-WAY RELEASE for instant push/pull movements

Product features

  • Group: XT M8100
  • Model: RD-M8100-R
  • Shifter Type: Rapidfire Plus
  • Mounting: Clamp
  • Gear rear: 12-speed
  • Optical Gear Display: No
  • Instant Release: Yes
  • Multi Release: Yes
  • 2-Way Release: Yes
  • Cable adjust: Yes


  •  approx. 125g (manufacturer information)

Shimano XT RD-M8100 12-speed Rear Derailleur

The Shimano XT RD-M8100 1x12-speed rear derailleur features an elegant yet aggressive angled design and an attractive anodised aluminium surface. The derailleurs feature bigger 13-tooth pulleys and include Shimano’s proven Shadow RD+ low profile technology.


  • Shadow RD+ For optimal chain retention
  • RD-M8100-SGS  
    • 51T max cog size
    • Works with both 12-speed 10-51 and 10-45-teeth cassettes
  • Pulley size with 13T increased for reduced friction

Product features

  • Group: XT M8100
  • Model: RD-M8100
  • Mount: Direct Mount
  • Technology: Shadow RD+
  • Gradations: SGS-Type 1x12-speed (10-51 / 10-45 cassette)
  • Compatible chain: CN-M8100 12-speed
  • Max. teeth large sprocket: 51T
  • Min. teeth large sprocket: 45T
  • Max. teeth small sprocket: 10T
  • Min. teeth small sprocket: 10T
  • Max. Front Difference: 0T
  • Total Capacity: 41T

Pulley cage

  • Type-SGS long


  • approx. 284g (manufacturer information)

Shimano XT CS-M8100 12-speed Cassette

The Shimano CS-M8100 is the suitable cassette for new XT 12-speed group. HYPERGLIDE+ drivetrain’s redesigned cassette and chain promotes the next generation of MTB riding by enhancing speed, shifting efficiency and smoothness over any terrain.


  • Gearing 
    • 10-51T (12-speed wide range spec for Enduro)
  • Hyperglide+ quicker shifting
  • Material Aluminium & steel
  • BEAM SPIDER construction Increased acceleration
  • MICRO SPLINE 10T lowest sprocket realized by new FREEHUB body construction

Product features

  • Group: XT M8100
  • Model: CS-M8100-12
  • Type: Hyperglide+
  • Gear: 12-speed
  • Compatible chain: CN-M8100 12-speed


  • 10-51 (10-12-14-16-18-21-24-28-33-39-45-51 teeth)


  • approx. 470g - 10-51 (manufacturer information)

Shimano XT CN-M8100 12-speed Chain with Quick-Link

The special design of the new Shimano XT CN-M8100 12-speed chain ensures improved shifting performance and smoother running - even in rough terrain. The SM-CN910-12 Quick-Link closure, which is also new, makes installation easy.


  • New Drive System Dedicated Design Chain
  • Greater chain retention to extend portion on the end of inner plate to firmly hold the tooth both front and cassette sprocket
  • Enhancements to shifting performance
  • Easy connect
  • Smoother driving even over bumpy terrain
  • Compatible with new generation of drive train
  • Quick-Link (SM-CN910-12)
  • Quick-Link connecting & removing pliers (TL-CN10) - Not included!

Product features

  • Group: XT M8100
  • Model: CN-M8100
  • Gear front: 1/2-speed
  • Gear rear: 12-speed
  • Type: HG
  • Hollow Pin: Yes
  • Pin Link Plate: SIL-TEC
  • Roller Link Plate: Chromizing
  • Roller: SIL-TEC
  • Connector: Quick-Link SM-CN910-12


  • XT M8100
  • SLX M7100
  • XTR M9100
  • 12-speed E-Bike


  • 126


  • approx. 252g / 116 Links (manufacturer information)

Additional Information

Featured No
Product Weight No

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