Troy Lee Design GP 20F BLOCK - Off Road Helmet - blue/white

Use: MX More info

TROY LEE DESIGNS

Features

MAIN DETAILS:

  • Type: off-road
  • Stable and high performance
  • Includes a carry bag
  • Weight: 1500 g (+/- 50g)
  • CE 22.05 certified

SPECIFICATIONS:

Exterior:

  • Technologically advanced polyacrylite shell
  • EPS (expanded polypropylene) chin guard for light and durable protection
  • 3 shell sizes to more precisely adapt to a variety of head sizes and cyclists ages
  • Plastic visor screws and brass inserts for easy impact
  • 4 rear air vents expel heat from inside the helmet
  • Stainless steel mesh screens on all openings to keep debris out, but maintain maximum airflow
  • Light, robust expanded polypropylene chin guard for easy break-away in the event of a fall
  • Detachable nylon visor inserts to shear off in a crash to prevent helmet snagging
  • Highly shock-resistant
  • High impact zones reinforced with high modulus Kevlar® for increased stiffness

Interior:

  • Dual density EPS inner shell
  • Designed to absorb impact
  • As it is close to the head, this layer needs to be as soft as possible while also ensuring maximum protection
  • Coolmax® and Dri-Lex® fabric lining
  • Dri-Lex® guarantees optimal ventilation combined with quick drying
  • Dri-Lex® is a combination of synthetic fibres made up of a double layer of water-repellent nylon and absorbent polyester: sweat is absorbed and then evacuated, allowing the skin to breathe, staying dry and comfortable
  • Effective sweat wicking
  • Dynamic venting and quick drying
  • Anatomic 3D cheek pads with quick release system
  • Removable and washable lining

More info

More info

MIPS (Multi-Directional Impact Protection System): This system is based on a hard plastic shell placed inside the helmet. Fixed to the helmet with multi-directional attachments, the MIPS system can move in all directions inside the helmet. The aim is to let the helmet move freely on the head in the event of an oblique impact. By turning around the head, the helmet absorbs and dissipates the force of the impact, thus reducing the effect on the brain.

This simple looking system can significantly reduce the impact force in the event of a fall when on a motocross or mountain bike.

COOLMAX®: A highly technical and unique fabric, specially designed to keep the user dry and comfortable. Coolmax® fabrics are made with Dacron polyester fibres that have a large surface area. This special 4-channel fibre forms a transport system to help wick moisture from the skin to the outer layer. Coolmax® dries quicker than any other fabric and acts on the body's heat regulation. Water-repellent, it retains up to 8 times less moisture than nylon and 14 times less than cotton. It also eliminates any unpleasant odours.

Kevlar®: Best known for its use in resistant armour, Kevlar® is an aramid fibre developed by DuPont™. It is a thermoplastic polymer consisting of aromatic rings which are separated by the amide groups. It is also used in various garments, accessories and equipment to enhance safety and abrasion resistance. It is light, durable and resistant.

This is a synthetic fibre which has excellent tensile properties and a high tensile strength. The toughness of Kevlar comes from its structure of hydrogen bonds held together between polymer chains.

Advantages:

  • Good traction resistance
  • Low density (1.45)
  • Zero thermal expansion
  • Vibration absorption and cushioning
  • Excellent shock and wear resistance
  • Good chemical behaviour