Aero gains are the ultimate in getting more speed without cranking out more power. If you’ve already bought into the ‘Aero is everything’ mindset, perhaps it is time to look to Null Winds’ Aerodefender upper wheel fairings. Claiming to offer more speed in a headwind vs. aero carbon wheels (and more stability), the pointy carbon fiber wheel fairings have proven themselves in downhill coasting tests. And now you can pre-order a set over at Indiegogo…
Null Winds Aerodefender carbon aero partial wheel fairings
OK, hold your judgement for just a minute, and let’s take a look at Null Winds’ claims and what they say is the science behind their Aerodefender.
The basic concept is that the faster, forward spinning upper portion of a bike’s wheel & tire generates the most drag slowing the bike down. By encasing that section of the spinning wheel inside the Aerodefender partial upper wheel fairing, drag is reduced in primarily headwind conditions. And you go faster.
To test out (and prove) their system, Null Winds paired two identical aero tri bikes in a roll down test into a moderate headwind, then repeated it switching riders. The result was that the Aerodefender-equipped bike was always faster, on average 7 seconds faster per kilometer!
And now you can pre-order a set for your road or triathlon bike for a limited time through their Indiegogo crowdfunding campaign.