I tried the Shinko Verge, they seem to grip the same as the ravens,. but do not last as long. They appear to be dual compound as I now have significant wear on the sides. Which is good for bragging. But for the extra money I do not care. I am putting back on ravens. I have touched pegs lightly with both tires, ridden in rainstorms of biblical proportions, cold down to upper 20's, heat this summer 110+ no issues with either. I like Shinko.