Giro Ratio MIPS helmet Matte Black
A new helmet for us that is basically the Nine with Mips at a better price, it does have a slightly thicker outer shell making it more durable but also slightly heavier than the Nine MIPS.
The Ratio is offered with the Multi-directional Impact Protection System (MIPS).
This lightweight helmet is defined by its low profile and streamlined silhouette. A wealth of features – including the custom tuning of the In Form Fit System and Thermostat Control venting.
Size: Small 52 – 55.5cm, M 55.5 – 59cm, L 59 – 62.5cm, XL 62.5 – 65cm
- In-Mold Construction, MIPS Equipped
- Fit System
- In Form Fit System , Vertical Tuning
- Thermostat Control Adjustable Venting, Super Cool Vents, Stack Ventilation
- Compatible with all aftermarket Giro audio systems, Seamless Compatibility with all Giro goggles
- ASTM F2040 / CE EN1077
- Giro Ratio MIPS helmet Matte Black
- MIPS Technology:
THIS IS HOW IT WORKS
In a helmet with MIPS Brain Protection System (BPS) the shell and the liner are separated by a Low Friction Layer.
When a helmet with MIPS Brain Protection System is subjected to an angled impact, the low friction layer allows the helmet to slide relative to the head.
The MIPS BPS is designed to add protection in helmets against the rotational motion.
The rotational motion is a combination of rotational energy (angular velocity) and rotational forces (from angular acceleration) that both affects the brain and increases the risk for minor and severe brain injuries.
MIPS BPS has been scientifically proven to reduce rotational motion when implemented in a helmet by absorbing and redirecting rotational energies and forces transferred to the brain.
STRAIN IN THE BRAIN
The illustration is based on data that was generated using a finite element computer model, based on measurements obtained from nine accelerometers in a Hybrid III crash test dummy head.
The dummy head wearing a helmet was subjected to an angled impact using the MIPS test rig.
The model illustrates strain in the brain from a similar angled impact when the dummy head is wearing a helmet without MIPS and a helmet with MIPS.
THE GREAT MISCONCEPTION
STANDARDS AND HOW YOU REALLY FALL
Accident statistics show that many injuries occur due to angled impact to the head.
However, in standard helmet tests the helmet is dropped vertically onto a flat surface.
The results are helpful for measuring precise vertical impacts, but far inferior for measuring the more realistic scenario of an angled impact.
MIPS has been developed for reality and increases protection against angled impacts.