Checking at Amazon, I noticed they are now offering these tires at $20 compare to ~$50 list price. I used the Fusion Comp and the Fusion 2 and both were OK although the Fusion 2 held less. I am not sure what are the differences compare to the regular Fusion 2. I recall the Ultra suppose to weight less but with the same characteristics. It seems that Hutchinson are not offering the Ultra any more. Yet, at such a price should I go for it?