275/40R21 Hankook Ion Evo SUV (Ik01a) 107YMeet the 275 40R21 Hankook Ion Evo SUV (Ik01a) 107Y, a tire crafted to elevate everyday driving. Built by Hankook, the ION EVO SUV (IK01A) emphasizes balance: grip when you need it and comfort when you want it. Blackwall sidewall construction helps the tire resist routine wear while keeping the aesthetic understated and refined. The tread pattern is tuned to maintain traction on dry pavement, manage water in the wet, and stay composed in light snow.