What’s Aaron Gwin’s secret to racing success? Well, obviously the guy is once-in-a-generation fast. But turns out when it comes to tire punctures (and avoiding them), the four-time World Cup champ has the benefit of a little something called Flat Tire Defender, which is a foam insert that was inspired by off-road motorcycle technology and is made of a closed cell foam rubber polymer material that is airless. This helps reduce the chance of flats, rim damage, burping air, and tire sidewall roll over, especially when running lower air pressure. Gwin says he’s been running the product for a year, including last year’s victorious 2016 World Cup campaign. Here’s Gwin himself explaining how it works.
The Flat Tire Defender kits cost between $110 and $130 depending on wheel size and adds upwards of 300 grams.
Here’s Gwin’s race mechanic breaking down the basics of installing and uninstalling the Flat Tire Defender system.
More info at flattiredefender.com