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Ships within 48 hours · Estimated delivery Sep 8 - Sep 13
The raven on the helmet should look a lot scarier
To determine a motors power in watts, you have to know how fast its spinning: Torque multiplied by rotational speed equals power
5mm wider opening The exclusive shell flares 5mm around the opening, making it easier to get the helmet on and off (for newcomers to Arai the initial "snugness" when putting the helmet on or taking it off can be challenging)
The test We took the helmets to the wind tunnel at the Silverstone Sports Engineering Hub, testing the aerodynamic performance of each helmet
Biomechanical metrics (work produced by the two legs, mechanical effectiveness and symmetry indexes) and bilateral electromyography from 9 leg muscles were acquired during the voluntary pedaling test
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