Unrivalled Power & Control: The Hope EVO GR4 Brake
The Hope EVO GR4 Brake, a refinement of Hope's test-winning Tech 4, is engineered to deliver maximum power and uncompromised control for the most demanding gravity and E-bike applications. This four-piston brake sets a new benchmark, offering a super-smooth lever action and premium construction that makes controlling immense power feel utterly natural.
Designed, tested, and manufactured in the UK, the EVO GR4 integrates significant updates to its master cylinder and calliper, ensuring improved control, power, and serviceability across gravity disciplines.
The Hope EVO GR4 Brake is the choice for riders who demand ultimate power and unflinching control on aggressive descents and high-performance E-bikes. Available in black or silver with standard Hope-coloured accents, it truly stands as a benchmark in gravity braking
EVO Master Cylinder Key Updates:
Refined Lever Feel: This lever features a new cam mechanism to reduce free stroke while meticulously maintaining the superb feel and modulation that defined the much-loved Tech 4.
Enhanced Ergonomics: The redesigned lever boasts an increased hook and a new dimple texture for maximum grip and control in all riding conditions.
Ultra-Smooth Operation: A refined piston assembly, incorporating a secondary guide bush and sliding guide, ensures ultra-smooth operation throughout the full lever stroke.
Simplified Maintenance: A new master cylinder bleed port allows for clean, tool-efficient bleeding without removing the lid, streamlining maintenance.
Lever Blade Options: Comes standard with the stock lever blade, with 'Control' and 'Power' lever blade options available as aftermarket purchases for further customisation.
GR4 Caliper Specifics:
Maximum Power Delivery: This system features four hybrid pistons, including the largest pistons in the EVO range, for the greatest stopping power. This design increases the brake ratio by approximately 6% compared to the previous Tech 4 V4 system.
Optimised Stiffness: The one-piece machined calliper body is refined for exceptional stiffness, contributing directly to increased power and superior control.
Improved Compatibility: A revised bore cap design reduces calliper width, ensuring better clearance with modern frame geometries and hubs.
Heat Management: Hybrid pistons ensure smooth movement and excellent heat management, which are crucial for sustained high-performance braking.
Dedicated Performance: Deliberately incompatible with vented rotors to maximise calliper stiffness and overall braking performance.
Premium Construction: As with all Hope products, the GR4 calliper is machined from a single piece of aluminium, reducing weight and enhancing stiffness.