Trail-proven power with balanced modulation. The one-piece TR4 caliper with larger pistons and shared GR4 pads delivers a 6.5% increase in braking ratio over the previous E4 system—ideal for trail and all-mountain use.

EVO Master Cylinder: The Master cylinder features a new cam mechanism to reduce free stroke while maintaining the feel and modulation, a key feature of the much-loved Tech 4. The piston assembly—features a secondary guide bush and sliding guide—ensures ultra-smooth operation throughout the full lever stroke.

EVO Calipers: The caliper bodies have been refined for greater stiffness, improved hub/frame compatibility, and streamlined profiles. Bore cap designs are optimized to reduce width and improve fit across modern frame geometries.

Key Updates

• Optional Control and Power Lever Blades, shaped for riders who prefer their brakes to bite at the extremes of the lever adjustments.
  • Control: For riders who run their bite point close to the bars.
  • Power: Bite point further out.
• Redesigned lever with more pronounced hook and dimples for more confidence in wet or cold conditions.
• New cam design and piston provide a firmer bite point and more feel.
• Upgrades to the lever bearing and piston add to the T4's already incredible feel and consistency.
• Clean, simplified bleeding thanks to a new bleed port in the master cylinder.
• Caliper tweaks enhance the consistency of performance as the pads wear.
• Larger pistons than E4 increases the braking ratio by 6.5%.
• Larger pads than E4 improves lever feel and consistency.
• Improved caliper stiffness.
• Lower profile shape with new bore cap design for more clearance.