I have been using the Shinko tires for about two years. I switched to the 805 after burring through two TKC80's - or I should say they burned through my wallet. The Shinko is a great deal- 120$ and free shipping from Chaparral Moto in California. As for quality, I think it is very high. They are engineered by a Japanese firm and manufactured using high quality rubbers and materials in South Korea. The tire wears much better than the TKC- almost twice as long actually. I get great traction off-road, and a nice smooth highway feel.