Quote Originally Posted by Pranav View Post
Forgive my ignorance since I haven't researched this much, but do the RRs actually provide more mechanical grip? I thought the 100 treadwear rating on the RA1s were totally bogus, with the RR's 40 rating being closer to reality?

As far as the loss of 16" size debacle, no plans to produce the RR in 16s? Did anyone up there think to ask? At this point are we the only NASA class still running big 16s?
Comparing treadwear on commercial tires between manufacturers is not terribly useful for performance applications since the testing done does not at all resemble what you do with the tires on the racetrack. Treadwear is used by manufacturers to position their product line more for marketing than any objective measure. The intent was to be a more reliable measurement for consumers but once manufacturers were given the control over testing it's become less than useful. Consumers are mislead on this.