Safe Tread Level for Rear Tires...
 

I know for most passenger tires the recommended tire replacement level is no less than about 2/32nds. We've seen quite a few S2k's have spin out in the rain with much more tire than that, so what do most people on here use as a recommended replacement tread level ?. I just picked up a set of oem rims with Bridgestone tires that have between 6 & 7/32nds on the rear tires. They should last a while but I'd like to monitor them in the future and replace them before they get to a dangerous tread level. Can you guys recommend a safe tread replacement measurement ?. thanks for any replies on this.

Look for the wear bars. Once these are flush with the tread, then it's time to replace.

Note that some tires just aren't that great in the rain, so regardless of the tread level, hydroplaning is a risk.

drive careful, but typically 2/32 on the insde of the tire and you should replace.

Definitely check the inners.

If you find you've got more wear on the inside rear than the outside rear which is typical for an S2000, then just flip the tires on the rims, re-balance and you should be good for a few thousand more miles. IMO, you should do this when you've got more than 5/32s on the inside rear. Of course this works for the fronts too.

quick thing, make sure your tires allow for flipping. some dont.

thanks for all of the replies. Thanks for the tip on measuring the inside tread, as the measurement varies across the width of the tread, I'll definitely keep that in mind.