is shaving a tire, adn just allowing to wear down to that level effectivly the same, or does heat cycling or something ruin that idea??

 

Depends on the tire. Some tires are not as heat sensitive as others. The advantage to shaving a street tire down from 8-11/32 to 3-4/32s is: you have shaved off all that squirmy extra tread, and you haven't heat cycled the tire yet. That means the rubber compound has a really high adhesion level, and will be more responsive to turn in etc.

Some tires "chunk" when unshaved, where whole tread blocks will just rip out of the tire. Though lately it certainly isn't a problem.

 

Also running a tire down on the street to the same level as shaving DOES heat cycle a tire making it harder. Also some say that a shaved tire will last as long as a non-shaved tire because tread squirm on a full tread tire wears the tire down quick.

 

thank you