Item number: 78073
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The XTR M9100 XC 2x12 groupset by Shimano - Intuitive, efficient and flexible

The Shimano XTR XC M9100 2x12 groupset includes drivetrain components with real competition genes, but it also offers enough flexibility to master even the steepest climbs in Cross Country use on unknown terrain. The goals set out during the development phase were higher shifting efficiency, intuitive and smooth operation and maximum control, whereby 12-speed compatibility is of course the most obvious difference to the previous XTR. The groupset consists of a light and stiff crankset with two chainrings (28-38 T), which in combination with the Quick-Link chain ensure smooth forward motion and even pedalling. Also included are a front derailleur (clamp, E-Type or Direct Mount), a Shadow Plus rear derailleur and a cassette with innovative Hyperglide+ Micro-Spline construction. On the cockpit side Shimano surprises with shifters in an I-Spec EV design, which offers even more adjustment possibilities, and with Rapidfire Mono, which makes the front derailleur easier than ever to operate.


XTR M9100
Cross Country
Shifters & Derailleurs:
2x, 12-speed (mechanical)


175.0 mm (gradation 28-38)
Front Derailleur:
Side-Swing, Front-Pull, Mid Clamp (clamp 34.9 mm, 28.6 mm/31.8 mm with adapter)
Side Swing, Front Pull, E-type (bottom bracket mount, chainstay mount)
Side Swing, Front Pull, direct mount
Rear Derailleur:
long cage (SGS)
Shift Levers:
I-Spec EV

Additional Components Needed:

The bottom bracket is not included. Shimano recommends SM-BB93 or SM-BB94-41A Pressfit Hollowtech II.


Freehub / Rear Hub:
Shimano Micro Spline. Various manufacturers offer conversion kits.

Brake Lever:
According to Shimano, only I-Spec EV, but there are adapter solutions for I-Spec (B) or I-Spec II from other manufacturers, e.g. Wolf Tooth.


The Shimano XTR M9100 2x12 groupset includes:
  • 1 x Shimano XTR XC crankset (FC-M9100-2)
  • 1 x Shimano XTR Shadow Plus rear derailleur (RD-M9120)
  • 1 x Shimano XTR front derailleur (FD-M9100)
  • 1 x Shimano XTR shifter, right ( SL-M9100-I)
  • 1 x Shimano XTR shifter, left ( SL-M9100-I Mono)
  • 1 x Shimano XTR cassette (CS-M9100-12)
  • 1 x Shimano XTR chain (CN-M9100)
  • 1 x TL-FC41 chainring assembly tool
  • 1 x Shimano crank lockring w/ washer
  • 1 x front derailleur adapter, 28.6 mm (clamp only)
  • 1 x front derailleur adapter, 31.8 mm (clamp only)
  • 1 x Shimano cable, 1800 mm
  • 1 x Shimano cable, 2050 mm
  • 1 x Shimano 1200 mm cable housing
  • 1 x Shimano 1800 mm cable housing
  • 1 x Shimano aluminium cassette lockring
  • 1 x cassette plastic spacer
  • 1 x Shimano SM-CN910-12 Quick-Link master link


  • grey/side-swing, direct mount/175.0 mm/I-Spec EV/10-45, out of stock
  • grey/side-swing, E-type/175.0 mm/I-Spec EV/10-45, out of stock
  • grey/side-swing, mid clamp/175.0 mm/I-Spec EV/10-45, out of stock

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