Originally posted by AdrianM
Accord-This is very interesting to us. We just ran the OnRoad Nationals (2x4 pine boards bolted to ground) on this wheel and tire combo with just 1 rim failure out of 600+ sets sold there. The driver that broke the wheel also destroyed his car in the process. We have also run a state race at TQ Hobby in Orlando (PVC pipe) with no problems.
The decision to go to a stiffer Dish rim was entirely the result of racer feedback. The 15 spokes would get wobbly if you hit a wall and could be slightly out of round when new. The new dish rims are super true and never get knocked out of true.
We'll all see how the wheels hold up at the MDI State race in 3 weeks.
The problems that I and many other racers are experiencing with the new dish wheels are because they are so stiff to the point where they do not get out of true, which is very good, but the downside to this is they are so stiff and cannot absorb hard impacts and instead they just flat out crack or rip clean off your car.
They are performance wheels no doubt, but they aren't durable at all.
There used to be a company (I forgot who) that produced dish wheels which were just as stiff as the new take off dish wheels, but they had three very long and thin tear drop shapes in them which kept them from cracking on impact but they still remained just as stiff all the time and never came out of true.
I have attached two pictures of some of the wheels that I cracked: