I have run on everything from Pirelli, to Toyo, to Nitto, to Goodyear, etc. etc. Now I run Nankang. It's in the same league as Suny and Nexan. Basically, they're "The little guys" over there (Japan). They have the same quailty & Ride, and in some cases, they are made by the manufacturers of the name brands. I can't remember right now, but one of the little guys is owned by one of the big guys and they actually are the same tire. We typically don't see them over here, because very few people import them, which is likely due to people not trusting a "name". I can't say that I have analyzed and compared the compounds, but from my experience, a Nankang performs just as well as the most expensive (comparable) tire I've had the pleasure of riding on. This is exactly why I decided to educate myself on the tire itself. If you know what you're looking for in a tire, it doesn't matter who makes it. All that matters are the specs, and the price. Know what performance you want out of it. Tread ratings: Speed, Milage, Performace. Then get the cheapest thing that fits your needs. My 2cents