I haven't had any experience with Shinko road tires, but the Bridgestone street tires for the TW are pretty amazing. You can get a lot of lean, good grip, just keep your pressures right. They're capable enough for you to leave the pavement without panicking as well. The rear will last nearly forever, the front definitely can't be overinflated though. They're so thick it seems overheating at TW speeds won't be a cause of much wear, as well.