Tubolight's Evo HD tire insets were designed for gravity riding. They are slightly wider and taller and feature a harder compound than other Tubolight inserts. The Evo HD inserts were developed to work with stronger casing tires from 2.35” to 2.80”. Minimum inner rim width is 26mm, and the maximum overall width is 46mm. Best application: trail (rear only), enduro, downhill, and e-bike.