The LS2 Challenger Carbon Flames originates from the LS2 Challenger Carbon helmet and there are 5 more variations to it. Let’s look all variation closely to find out the perfectly blended design for you and it’s price. Mostly, these variants are different in terms of colors and design. No specific differences to be highlighted. I loved the Challenger Carbon Flames Blue-Gold variants and I am writing this review based on that.I found the Challenger GT Carbon a well-ventilated helmet with a closer interior temperature compared to the ambient temperature. But the interior is not as quiet as I have expected but the comfort is good. They have the Pinlock insert within the bag. For, a sports-touring helmet, I like the LS2 Challenger GT Carbon Helmet.