Originally Posted by Ti-Jean
This gives me some hope... On my RS-3, when they became slick, they corded soon after.
On the NT01, the thread blocks count fot the first 3/32" of avaiable thread depth. Once the blocks have worn away, you still have another 3/32" to go. You can even have them shaved down to 3/32" as new to get a grippier tire out of the box. See info from Nitto web site: