After buying my first set of 29.5X10.5 Pro Bracket Radials I will never use another tire again! Over 3 years on one set I put on about 500 passes, the 60 foot never varies more than about 8 thou throughout the day, I run them at 19 psi and don't do a burnout either. Stab the throttle out of the water and that's all. The car runs 10.20's and 60 foot times are 1.39-1.41 depending on the day. I will put new ones on for next season but I'm sure I could probably sneak a 4th year out of them, last pass of this fall was identical in all incrementals to the first pass I made in the spring. They would still be perfect for the average 11 second car. You'll never go wrong with that tire!!