Hope EVO GR4 Braided Disc Brake

Hope Technology Unveils the EVO Brake.
At Hope Technology, we’re renowned for making components that last. After four
years. Our test-winning brake, the Tech 4, was due for an update—not a reinvention,
but a refinement.
Introducing the EVO: A step up in braking performance, with updates to both the
master cylinder and calipers, EVO delivers improved control, power, and
serviceability across cross-country, trail, and gravity disciplines. You’ll notice
familiar names from our existing lineup—a deliberate move to make choosing the
right brake easier than ever.
The Three Options:
EVO GR4 – 4 Piston Gravity Brake
Maximum power, zero compromise. Engineered for gravity and E bike use, the onepiece GR4 caliper features a stiffer one-piece body, larger pistons (6% more power vs
Tech 4 V4), and a slimmer profile for better frame compatibility. They are
deliberately not compatible for vented rotors, to maximize caliper stiffness and
performance.
EVO TR4 – 4 Piston Trail Brake
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 X2 – 2 Piston XC Brake
Lightweight, smooth, and precise. The EVO X2 pairs the new EVO master cylinder
with the X2 caliper for riders who prioritise lever feel and control over sheer power—
ideal for cross-country and lighter duty use.
Engineered for the real world.
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 ultrasmooth operation throughout the full lever stroke.
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:
- 3 Lever blade options: Standard, Control & Power. (Control and Power are
after market purchases. More information on the Lever blades here (link)
- Ergonomics: Redesigned lever with increased hook and new dimple texture
for maximum grip and control in all conditions.
- Improved Modulation: New cam design and piston improvements deliver
firmer bite point and improved feel throughout the braking zone.
- Smooth & Predictable Lever Feel: Upgraded internal piston mechanics and
roller-bearing pivots ensure consistent performance and feel.
- Simplified Bleeding & Maintenance: A new master cylinder bleed port allows
clean, tool-efficient bleeding without lid removal.
- Improved Pad Wear Consistency: Caliper tweaks to improve brake feel across
the entire pad lifespan.