this post was submitted on 11 Sep 2023
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Smooth is better unless it's raining. And even then, the deep groves are only needed when it's very wet. Car tyres have to cover the 100% case of water.
The tires above look like they are just extremely over used, which has its own danger, namely failing.
yeah no way you can sand it to this level
A racing slick or slick tyre is a type of tyre that has a smooth tread[1][2][3][4] used mostly in auto racing. The first production slick tyre was developed by M&H Tires in the early 1950s for use in drag racing. By eliminating any grooves cut into the tread, such tyres provide the largest possible contact patch to the road,[5] and maximize dry traction for any given tyre dimension
Which is why they're used on properly maintained tracks, not dirt tracks
Youll often see cars run wide if they pick up dirt or dust with slick tires. Youll also often see rubber pebbles lying next to the racing line as seen here. Twitter link. After a race drivers are told to pick up rubber to make the car a tiny bit heavier to avoid being umderweight, which will lead to the tires looking completly gone.
If you want to see what happens with wet tires on a drying track look at "Slicktermediates" wich kinda look like the ones in the OP.
And now you're attacking the straw man.
At race speeds the treaded tires on your daily driver wouldn't do much better. It's not like gravel can flow through the treads like water does. You'd need something much knobbier, and even then gravel is slick, you'd need to be mentally prepared for that.
Lol no.