Lets you pedal continuously while shifting

Increased acceleration by reducing inertia and weight by BEAM SPIDER construction

Definitive shifting

Hyperglide+ 30% quicker shifting

New MICRO SPLINE construction to engage FREEHUB body

Compatible Chain: HG 12-speed

Series: CS-M9100

Generation: XTR M9100

Speeds: 12 speed

Cogs: choose; 10-45t (10-12-14-16-18-21-24-28-32-36-40-45T), or 10-51t (10-12-14-16-18-21-24-28-33-39-45-51T)

Material: Titanium (5 cogs), aluminum (3 cogs), and steel (4 cogs)

Cassette/Freehub Compatibility: Micro Spline HYPERGLIDE+ (not compatible with standard HG freehub bodies)