Bearings, roughly

[CarlsonMotorsports]

In the sprint world, pinning both side is normal. I wonder how they get away with it, whith much higher side loads? I'm inclined to believe JPMKarting and that this is a pseudoengineering phenomenon in karting. Now if the bearings weren't in self-aligning carriers, I'd think differently...

In the sprint world, you are purposely hitting curbs to unload the inside tire also - something that oval karts (especially on dirt) are not trying to do. Pavement sprint guys play a LOT with axle stiffness, axle stiffeners, and extended hubs... not so with chassis on the oval side.