I saw that but also saw that it has a 45K mile warranty when used on a car. I have no idea how that translates to the Ryker. On the other hand it looks like I will only get about 8K out of my stock Kenda so it won't take much improvement to justify the change and this tire is less than half the cost of the Kenda. Besides, if it doesn't work out I can always switch back to the Kenda and will have learned something.