2 in 1 Package include - Shimano XTR M9100 12 Speed Right Shifter :SL-M9100-R(132g) - Shimano XTR M9100 12 Speed Rear Derailleur:RD-M9100 SGS(244g) 4 in 1 Package include - Shimano XTR M9100 12 Speed Right Shifter :SL-M9100-R(132g) - Shimano XTR M9100 12 Speed Rear Derailleur:RD-M9100 SGS(244g) - Shimano XTR M9100 12 Speed Cassette:CS-M9100 10-51T(370g.10-12-14-16-18-21-24-28-33-39-45-51) - Shimano XTR M9100 12 Speed Chain: CN-M9100(253g) - Shimano 12 Speed Quick Link 1 pair:CN910+ 6 in1 XTR M9100 1x12 Speed Groupset NO Brake ： - SL-M9100 Shift Lever 1x12-Speed - RD-M9100 Rear Derailleur SGS - FC-M9120-2 Crankset (32T 34T 170MM 175MM) - SM-BB93 (BSA 68/73mm) Swirling type - CS-M9100 Cassette Sprocket (10-51T) - CN-HG-M9100 chain 116L 7 in1 XTR M9100 1x12 Speed Groupset NO Brake ： - SL-M9100 Shift Lever 1x12-Speed - RD-M9100 Rear Derailleur SGS - FC-M9120-2 Crankset (32T 34T 170MM 175MM) - SM-BB93 (BSA 68/73mm) Swirling type - CS-M9100 Cassette Sprocket (10-51T) - CN-HG-M9100 chain 116L - XTR M9120 4 pot brakeset BL-M9100 Brakeset 7 in1 XTR M9100 1x12 Speed Groupset With Brake ： - SL-M9100 Shift Lever 1x12-Speed - RD-M9100 Rear Derailleur SGS - FC-M9120-2 Crankset (32T 34T 170MM 175MM) - SM-BB93 (BSA 68/73mm) Swirling type - CS-M9100 Cassette Sprocket (10-51T) - CN-HG-M9100 chain 116L - BR-M9100 Brake SL-M9000-R - Quicker lever access and light operatio force maintains rider concentration :20% quicker lever access time - Greater flexibility and action-optimized cockpit layout :-35% shifting operation force(vs. M9000) RD-M9100 SGS - Enhance shifting performance - Optimzed for new drive system - Silent drivertrain - Low profile design - Low sprocket combination CS-M9100 10-51T - Definitive shifting Let you pedal continuously while shifting Increased acceleration by reducing inertia and weight by BEAN SPIDER construction - New MICRO SPLINE *construction to engage Freehub boby CN-M9100 - Smoother driving even over bumpy terrain - Compatible with new generation of drive train - Quick Link (CN910-12) CN910 - Easy connect - Quick assembly tool also available - Non-reusable​ BL-M9100 Hydraulic Disc Brake Lever Front Left 900mm；Right Rear 1600mm FEATURE Quicker rebound between actions maintains rider concentration Greater flexibility and action-optimized cockpit layout Update brake lever shape 10% stiffer than M9000 even under high temp conditions Magnesium master cylinder 26 g lighter (vs. BL/BR-M9000 with disc brake rotor) --------------------------------------------------------------- Buy from Us! 100% POSITIVE FEEDBACK 100% Warranty & After Sale Service 100% PARCEL ARRIVAL GUARANTEED 100% x hidden charges 7 days size exchange 7 days 100% Guarantee back Prompt response Registered SSM company- Icebikeheaven 7 Years of experience