After 100 hours of aerodynamic and thermal testing, the Specialized Evade 4 isn’t any faster - but it is cooler

The Specialized S-Works Evade 4, with fog flowing through its vents from front to back of the helmet to depict its new 2.4% increase in ventilation improvement. .

Specialized has lifted the lid on the fourth-generation Evade, and the brand says it’s achieved a 2.4 per cent reduction in heat build-up, without giving away any watts.

The Evade has long been the brand’s best aero bike helmet offering, but in this iteration, 100 hours of aerodynamic and thermal testing went into increasing ventilation, without an aero penalty.