Shimano XTR M9000/M9020 Groupset

The buzz throughout the mountain bike community has been all about the latest iteration of the XTR as of late. And for good reason, this 11 speed offering from Shimano is the first of its kind- an 11 speed groupset that fits a current standard freehub body traditionally only known to house 10 speed cassettes. What this does is knock SRAM's XX1 and X01 offerings, which both require replacing the rear wheel's freehub body first. What's more, this group features some of Shimano's latest shifting and performance technologies, all wrapped up in the lightest offering from any mountain component company.

Crankset

XC Race or Trail Specific HOLLOWTECH II crank arms
32T single / 26-36T double
Narrow Q-factor (158mm) Race / Standard Q-factor (168mm) Trail

Shadow+ Rear Derailleur

New Shadow design with optimized slant angle
Chain stabilizer with easy adjust
Efficient pulley teeth design for better shifting and smoother driving
Carbon plate for lightest weight

Cassette Sprocket

Wide range 11sp cassette: 11-13-15-17-19-21-24-27-31-35-40
HG-X11 specific tooth profile
Rhythm step gear progression
Aluminum, titanium and steel cogs

Chain

HG-X11 special asymmetric plate design for 11-speed
SIL-TEC on Plate/Roller

Shifters

20% lower shift effort
Improved Vivid index mechanism
Longer carbon, textured levers
Ball bearing construction
Multi / Instant and 2-Way release
I-spec II offers more room on bar and rotation and side adjust-ability