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Product information

HJC RPHA 11 Deroka MC-4 Helmet. This is the evolution of the successful RPHA10 Plus model. The RPHA 11 has a new ventilation system, improved safety and aerodynamic details and presents a greater visual field. It is the most sports and advanced helmet of the brand.


Outer shell:

Shell made of an advanced composite of fibreglass, carbon fibre and Aramid. This compound confers the helmet great resistance to impacts with a very reduced weight. This technology has been baptised by the brand as PIM+ (Premium Integrated Matrix Plus).


The helmet's ventilation system has redesigned air vents, on the chin guard and the top of the shell, as well as two new orifices on the front of the helmet. The air intakes are now capable of absorbing a greater air flow, whilst the ventilation ducts are now wider and afford optimum ventilation inside. The opening and closing mechanisms of the ventilation system rely on an on-off type mechanism on the chin guard and the front part of the shell whilst the upper air inlets have the same redesigned dial system as the RPHA10 Plus. The dial system affords the possibility of regulating up to 7 different positions and has a rubber finish for greater contact with the glove and in the wet. The rear spoiler has two exit orifices, as well as some grids from side to side of the rear area of the helmet that ensure complete moisture and hot air extraction.


The RPHA 11 screen has a wider field of vision. It has anti-scratch and anti-fog treatment. With a clear and a dark screen as well as Tear-Off and Pinlock brackets.

The interior Pinlock visor included avoids the screen misting up.
Redesigned closure system: now by just pushing the closure lever upwards, this unlocks and it can easily be raised.

The RapidFire screen mechanism allows for rapid, tool less mounting and removal.


The interior for the helmet has been completely redesigned. The Multicool system has three different textile finishes, each one with different functions: the cheek pad optimises the fell and comfort on the go, whilst that which surrounds the upper part of the helmet combines the correct fit with optimum breathability. The upper padding aims to correctly wick sweat and moisture from inside, assisted by the advanced interior ventilation system. The outer finish of the padding includes reflective areas and a rubber crown which keeps water out of the helmet in the case of rain. One of the biggest novelties of this helmet is the emergency extraction of the side padding, allowing the quick and simple removal of the padding. All the padding is removable and washable.

Other features:

  • Double buckle or double D fastening system.


  • Breath guard and chin curtain included.


  • Weight: 1300g for size M.
Homologations - Important note
  • ECE 22.05
    Helmet homologated in accordance with the European regulations ECE / ONU R22.05.

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