[Michael Beard]

30" Radial is .12-.13 faster in the 1/4 mile for a similar sized tire, and still a good bit faster than even a 28" bias. I've never rotated mine. Typically run 18psi. 112-115 runs on the M/T 3066R (30x9 radial), been 1.41 60' on cords. 60's are dead-on until 110 runs, then they might blow them off completely, then come right back for a couple runs. I can only remember about 3 runs out of 1,200+ where the tire slipped "just a little". That's why I bracket race on them full time. They print timeslips.