Is there any reason the front tires on 18 wheelers have the spikes that stick out compared to inset in the rear tires?

Question

I know they aren’t spikes but couldn’t remember the term for em. Lol

In: Other

Answer 1

The rear tires are bolted to an axle and hub only where the front tires are bolted to control arms hub and steering capability. This causes a different point where the weight needs to set. Something like that.