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Technical Parameters of Top-of-the-Range Summer Helmets
The following data represent the engineering benchmarks of market-leading models for ventilation and lightweight performance:
Minimum number of front air intakes for active ventilation: 18 vents
Average weight of a ventilated helmet in size M: 210 - 240 grams
Minimum depth of internal EPS channels for the Venturi effect: 15 mm
Estimated power savings coefficient at 40 km/h: up to 4 Watts
Recommended lifespan for expanded polymer integrity: 3 - 5 years