Shimano SLX M7120 Hydraulic Brake Kit

Product Overview

The Shimano SLX M7120 is a complete 4-piston hydraulic disc brake system engineered for trail and all-mountain riding. This kit pairs a powerful post-mount caliper with a 2-finger right-hand lever, pre-assembled with banjo hose and resin pads. At 444g, it delivers reliable stopping power and modulation across technical terrain and variable conditions. Rotor and mounting hardware sold separately.

Key Features

• 4-piston caliper design – Distributes braking force evenly across rotor; maximizes stopping power and heat dissipation for sustained descents and aggressive riding
• Post-mount standard fixation – Universal mounting interface compatible with modern frame designs; requires simple 5mm bolt installation
• 2-finger right-hand lever – Aluminum construction with 22.2mm clamp diameter; ergonomic design for comfort and control across extended braking scenarios
• Banjo hose connection – Fast-connect fitting simplifies installation and hose routing; tool-free hose removal and repositioning for field adjustments
• 1.70m pre-assembled hose (SM-BH90-SBM) – Included brake line ready for installation; can be cut or routed through frame internal channels
• N03A resin pads (standard) – Balanced friction material provides good modulation and reliable performance across variable conditions
• Wide pad compatibility – Works with N03A Resin, D03S Resin, N04C Metal, and D02S Metal pads; allows customization based on riding style and conditions
• Mineral oil hydraulics – Shimano's proprietary mineral oil system provides reliable pressure transmission, easier maintenance than DOT fluid, and reduced environmental impact
• Complete ready-to-install system – All components pre-assembled; requires only frame mounting, hose routing, and bleeding before use

Technical Specifications

• Brake system type: Hydraulic disc, 4-piston
• Mount type: Post-mount
• Caliper model: M7120
• Lever model: M7100
• Lever type: 2-finger, right-hand
• Lever clamp diameter: 22.2mm (standard handlebar)
• Lever material: Aluminum
• Piston count: 4
• Pad specification (standard): N03A Resin
• Pad compatibility: N03A Resin, D03S Resin, N04C Metal, D02S Metal
• Hose included: SM-BH90-SBM (1.70m)
• Hose connection: Banjo (fast-connect)
• Hydraulic fluid: Shimano Mineral Oil (only)
• System weight: 444g (caliper, lever, hose, pads; rotor not included)
• Rotor compatibility: 140mm–203mm standard rotors (rotor sold separately)
• Finish: Anodized aluminum (lever and caliper)

Compatibility and Ideal Use Cases

• Frame requirement: Post-mount brake mounts (modern mountain bike standard); standard 22.2mm handlebar diameter
• Rotor requirement: Separate purchase needed; 160mm–203mm recommended to match 4-piston power output
• Rotor mounting: Requires separate disc brake rotor mounting kit for your specific frame (sold separately)
• Fluid type: Shimano Mineral Oil ONLY; other mineral oils will damage lever and caliper seals—do not substitute brands or types
• Pad type: Choose between N03A/D03S Resin (less noise, good modulation) or N04C/D02S Metal (superior modulation, higher friction); resin adequate for general trail riding
• Brake lever: Right-hand only; left-hand system requires separate purchase
• Best for: Trail riders, all-mountain biking, technical terrain specialists, and riders seeking a complete brake system solution with customizable pad options
• Ideal conditions: Variable terrain, sustained descents, technical trails, and conditions requiring reliable, predictable braking power
• Installation: Requires mechanical skill; bleeding necessary after installation using only Shimano Mineral Oil and proper bleeding kit; banjo connection simplifies hose management
• Rotor selection: 180mm–203mm rotors recommended to fully utilize 4-piston power and prevent heat-induced fade on long descents
• Maintenance: Monitor pad wear regularly; replace only with compatible N03A, D03S, N04C, or D02S pads; use exclusively Shimano Mineral Oil for any fluid top-ups or bleeding procedures
• Critical note: Shimano Mineral Oil seals are specific to Shimano fluid—substituting other brand mineral oils will destroy internal seals and void warranty; always confirm fluid type before purchase and use only genuine Shimano Mineral Oil for maintenance and bleeding