• BR-M666
| Model Number | BR-M666 |
| Series | Deore XT |
| Brake Type | Disc-brake |
| Compatible Brake Lever | BL-M666 |
| Reinforced Parallel Push | |
| M System Brake Pad | |
| Brake Pad Types | F01A Resin,G01S Resin |
| Cartridge Shoe Holder | |
| Spring Tension Adjuster | |
| Hydraulic Fluid | Shimano Mineral |
| Brake Hose Type | SM-BH90-SB |
| Caliper Mount Type | International standard / Post mount |
| Caliper Material | |
| Caliper Finish | |
| Piston Type | Opposed 2-piston |
| Average Weight |
