HJC TT & Triathlon Cycling Aero Helmets | ADWATT 1.0

The Adwatt 1.0 was designed through enhanced wind tunnel testing to improve its drag force performance on the track. Using the HJC ADWATT 1.0 time trial helmet, Victor Campenaerts and the LOTTO SOUDAL UCI World Tour team beat the UCI HOUR RECORD in April 2019.

Sizing:

• S: 51-56 cm / 20-22”
• M: 55-59 cm / 21.6-23.2”
• L: 58-63 cm / 22.8-24.8”
• Weight: 260g (±10) helmet only / 320g (±10) incl. visor

Technical Features

Wind Tunnel Tested
HJC helmets are tested in the laboratory and in "real life" to meet the highest quality standards. HJC is one of the few helmet companies equipped with its state-of-the-art wind tunnel laboratory to test aerodynamics, ventilation, noise, and more. The HJC wind tunnel test lab measures the air forces in various riding conditions to improve helmet performance.

Aerodynamic Design
Coming from MotoGP race-helmet design experience, HJC designers and engineers have become experts in aerodynamics and wind-ventilated helmets. As the word implies, aero helmets are more aerodynamic than the conventional racing bike helmet but with compromised ventilation performance. With HJC Helmets, this compromise is very much reduced. HJC offers probably the best-ventilated semi-aero Helmet on the market…. Save Watts with HJC Helmets!

Advanced Air Channel System
A certain amount of air passes through the front air-intake port, circulates inside the Helmet, and finally exits through the exhaust port. The internal airflow is then increased to cool the head and evacuate the heat.

Ventury Dynamics
A technical adaptation of Bernoulli's principle is applied to HJC's aerodynamically enhanced models to achieve maximum ventilation. In motion, the surface flow rate generally increases as it progresses toward the rear of the Helmet. Through pressure differences, cool air from the frontal intake is extracted through the rear vent for internal heat dissipation, giving the cyclist optimum ventilation and perfect airflow while riding.

In-mold Construction
In-mold bonds the EPS with the outer polycarbonate shell for greater structural strength. This improves the rider's protection by providing a compact reinforcement and gives the product a perfect finish.

Feather Light
HJC bicycle helmets are designed and engineered through precise measures to have the lightest weight possible. Density, placement, shapes, and materials play a part in weight optimization.

Size Guide

Additional Shipping Charges Apply:
Large volume / volumetric weight Shipment - This product originates from our distribution center in Bangalore, India. It will be transported using the most reliable and premium courier partners to ensure reliable delivery of the product to you. Any orders received out of Bangalore will attract a nominal shipping charge, to be decided and applied by couriers after the order is placed and when the product is ready for dispatch - by checking the volumetric weight of the shipment box. Applicable shipping charges by the transporter will be communicated and to be paid before the news.