The Hankooks are interesting because people here are running them full tread without issue. They are also getting good times (Miatas). You can't do that with the Dunlops as the tread blocks get destroyed. I would suspect the Kumhos may be like the RS3s in this regard? Anyone know?

I will likely go RS3 or Dunlop to start.

From what I can tell 200+ runs is common with shaved street tires.

 

What new Azenis?

 

Oh, really? My Dunlops must be special, then.

 

Let me qualify my observation. I have not seen any used on any Miatas or S2000s, mostly heavier cars.

So are you getting good wear with no tearing of the edge of the tread blocks? I would think that shaving would provide additional stability and crisper turn in.

 

So far, 255s on the front of an S2000 get a pretty easy life if you know what I mean. That's a lot of tire with not a lot of task.

 

Azenis 615-K

Same tread pattern, slightly different construction and compound.

 

Gotcha, and how would one tell if they are the "K" model? Is there some designation on the tire?

 

They aren't out yet. I think there will be a notation on the sidewall for the K

 

Since I have no experience with the aforementioned upper spring mounts, I have a question. Let me preface that it is based upon my assumption the perch transmits load through a shock's upper mount to allow angular misalignment of the spring and shock together.

For those using the Koni, or similar, upper spring perches with the OE 'top hats', and possibly the GC units, are you concerned with spring's new load path? I would think the additional load on the lower shock rubber would cause significant compression, possibly limiting efficacy of the misalignment motion. I would also expect rapid wear and/or destruction of the rubber.

A cross section of a NB Miata 'top hat', which seems similar in construction to the S2000's (Majestic Honda exploded diagram for reference), is shown below with the spring's load paths represented by black lines.

Feel free to point out my errors as I have no experience with types of setups.

New load path left, OE load path right with the OE spring position as the red dots (this does not depict the OE upper spring rubber thing):


Exploded shock mount diagram (front):

 

You read all those posts a little ways back up this thread that discuss this very thing right? Bottom line: nobody knows the difference between coaxial spring compression vs. misaligned compressed as illustrated above because the user felt difference will be minimal. It would be theoretically ideal to have a separate upper spring perch that is not part of the top hat but I don't think it's gonna cost anyone any time on course.