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SH+ always invested on new products that could guarantee both maximum safety and comfort, exceeding all requirements set by international standards and norms.
The “RIT” test is a protocol adopted by SH+ to identify an objective method, based on scientific sources, for measuring the performance of its helmets against rotational impacts.
The major part of tests made on cycling helmets that use rotational impact prevention technologies are carried on using headforms whose coefficient of friction is much higher than those of human skull and therefore do not reflect reality.
The SH+ “RIT” impact conditions are based on real accident data.
The “pass-fail” criterion is based on the BrIC value, an algorithm that defines the level of brain injury. This value must be lower than 0,78.
BrIC is an algorithm that defines the level of a brain injury. To simplify, to a lower number corresponds a lower risk of concussion. Concussive (AIS2+) values of BrIC for humans varied from 0,60 when scaled directly from animal data (Ommaya, 1985) to 0.78 when obtained directly from college football players (Development of rotational Brain Injury Criterion (BrIC), Human Injury Research Division, UNECE)
AIS is the Abbreviated injury scale: The Abbreviated Injury Scale (AIS©) incorporates current medical terminology providing an internationally accepted
tool for ranking injury severity. AIS is an anatomically based, consensus derived, global severity scoring system that classifies an individual injury by
bodyregion according to its relative severity on a 6 point scale (1=minor and 6=maximal).
AIS is the basis for the Injury Severity Score (ISS) calculation of the multiply injured patient. (Association for the Advancement of Automotive Medicine (AAAM)).


oblique tests @ 45°, impact speed 6 m/s, BrIC < 0,40
+ grade 80 closed-coat aluminum oxide abrasive paper
+ headform nominal coefficient of friction 0,3
Headform: EN960 series
Peak of rotational acceleration,

Peak of linear acceleration, HIC, BRIC (< 0,68)

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