Here's my deal with the Rikens........A little over a year ago I bought my 2007 RX8 used which had custom wheels/ Rikens Raptor on the car. Car had 15,000 miles. Assuming the original buyer replaced the factory wheels/tires right after they bought the car, and now that it has 25,000 miles on it, tire wear is not good. Also, one of the tires has a sidewall bubble that at some point would blow out. Maybe the original owner never rotated them, just dont know.