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HOPE

HOPE TECH 4 EVO GR4 Rear Brake Black/Purple

Réf. fabricant : T4EG4NPUR
The HOPE TECH 4 EVO GR4 brake represents the pinnacle of British technology and 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 British technology and 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, in particular downhill and e-bike riding.

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 deliver fluid and customisable control of braking power. The lever pivot runs on two annular bearings, ensuring a smooth and consistent action, while the adjustment dials allow fine-tuning of the reach and bite point according to 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 of 17 mm and two of 18 mm — guarantee maximum power and optimal thermal management. This model offers 6% more power than the Tech 4 V4, while retaining exemplary progressiveness. Ideal for gravity riding 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 disciplines. With its 2 m hose, its 14 colour combinations and its highly refined design, it stands as the absolute benchmark in high-end braking for the most demanding riders.

Technical manual.

Ref: 15478135456124

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, and Control or Power as options).
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 pistons of 17 mm (stainless steel + phenolic resin).
2 pistons of 18 mm (stainless steel + phenolic resin).
Braking power increased by 6% compared to the Tech 4 V4.
Optimised thermal management and excellent progressiveness.
Not compatible with ventilated 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.

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

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

Weight (manufacturer): 336g with bolts.

Informations prix

*Supplier recommended retail price in September 2025