Hydraulic disc brake Shimano XTR BR-M9120 Front: a four-piston caliper and I-SPEC EV lever.
| Feature | Specification |
|---|---|
| Position | Front |
| Lever side | Left |
| Lever | BL-M9120 |
| Caliper | BR-M9120 |
| Caliper pistons | 4 |
| Assembly | Pre-assembled |
| Shifter interface | I-SPEC EV |
| Pads | Metal |
| Lever support | Additional handlebar contact point |
| Lever mechanism | Servo Wave |
| Reach adjustment | Tool-free |
| Hose | SM-BH90-SBM |
| Installed pads | N04C metal pads with fins |
| Manufacturer rigidity comparison | 8% stiffer than M9000 |
| Weight measurement reference | 385 g per side including lever, caliper, hose and RT-MT900 rotor |