Best BASX wheels and axles?

John’s 93TX axles & 2.4’s are a great combo & what I run. As far as the best, I’m sure there will be a shared difference in opinions on that topic.
 
Whats the difference between the 2.4 predators vs the 2.4 terminator?

The predators have more weight on the hub, and less on the rim of the wheel. They are always going to be faster with all things being equal, but they are illegal in most BASX classes right now, as far as I know.
 
The predators have more weight on the hub, and less on the rim of the wheel. They are always going to be faster with all things being equal, but they are illegal in most BASX classes right now, as far as I know.
They are legal in PinewoodDerbyRacing.com races and the National Championships BASX classes. There are going to be a few class changes coming.