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HOPE

HOPE TECH 4 EVO GR4 Rear Brake Black/Blue

Réf. fabricant : T4EG4NBR
The HOPE TECH 4 EVO GR4 brake represents the pinnacle of technology and British craftsmanship. Designed to deliver a perfect feel and absolute control,... Read more
Regular price 7.251,00 CZK
Regular price Sale price 7.251,00 CZK
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Description

The HOPE TECH 4 EVO GR4 brake represents the pinnacle of technology and British craftsmanship. Designed to deliver a perfect feel and absolute control, it is the ultimate evolution of the renowned Tech 4 system. Entirely machined from a block of 2014 T6 aluminium, it combines precision, power and reliability to meet the demands of the most extreme disciplines, including downhill and e-bike.

The TECH 4 EVO master cylinder benefits from significant improvements: new piston, floating head, optimised cam, second guide seal and three new levers. These developments provide smooth and customisable control of braking power. The lever pivot rests on two annular bearings, ensuring a smooth and consistent action, while the adjustment dials allow fine-tuning of the reach and bite point to suit the rider's preferences.

The GR4 calliper, Post-Mount (74.2 mm) standard, is machined as a single piece for increased rigidity and controlled weight. Its four hybrid pistons — two 17 mm and two 18 mm — guarantee maximum power and optimal thermal management. This model offers 6% more power compared to the Tech 4 V4, while maintaining exemplary progressiveness. Ideal for gravity and e-bikes, it remains incompatible with vented rotors.

Supplied with three types of pads (Racing, All Conditions, and E-Bike), the HOPE TECH 4 EVO GR4 adapts to all riding styles. With its 2 m hose, 14 colour combinations and highly refined design, it stands as the absolute benchmark in high-end braking for the most demanding riders.

Technical manual.

Ref: 15478134473084

Informations techniques

TECH 4 EVO Master Cylinder:
Fully machined from a 2014 T6 aluminium block.
New piston and floating piston head.
New cam and 2nd guide ring.
3 new levers for more precise and customisable control (standard as original, Control or Power as optional).
Lever pivot mounted on 2 annular bearings → smooth and durable action.
Bite point and free stroke adjustment dials for quick and precise adjustment.
Natural braking feel, controlled power and optimal reliability.

GR4 Calliper:
Standard Post-Mount, 74.2 mm bolt spacing.
Monobloc machined from a 2014 T6 aluminium block for increased rigidity and reduced weight.
4 hybrid pistons:
2 x 17 mm pistons (stainless steel + phenolic resin).
2 x 18 mm pistons (stainless steel + phenolic resin).
Braking power increased by 6% compared to the Tech 4 V4.
Optimised thermal management and excellent progressiveness.
Not compatible with vented discs.
Revised bore cap design: reduced width for better frame clearance.

Hose:
Diameter: 5 mm.
Length: 2 m.
Standard version.

Pads included
Racing (green): maximum performance.
All Conditions (red): versatile use.
E-Bike (purple): endurance and power suited to e-bikes.

Compatibility & Options
14 colour combinations available.
Compatible Matchmakers:
HBSP426
HBSP441
HBSP431
Sram
Sram T-Type
Shimano I-Spec II & EV.
Aviation hose available as an option.

Important note:
Works with DOT 4.0 or DOT 5.0 fluid only.

Weight (manufacturer): 336g with screws.

Informations prix

*Supplier recommended retail price in September 2025