evo.com | Shimano Shifters > Let's be honest: the only appreciable difference between the Shimano SLX SL-M7100 12-Speed Rear Shifter and the XTR model is only being able to shift three cogs instead of four with one stroke. Choose wisely. Weight 117g Rapidfire Plus Shifter Type Compatible with Shimano 12-Speed Drivetrain Components Anti-Slip Thumb Operation 2-Way Release Yes | Shimano SLX SL-M7100 12-Speed Rear Shifter 2020