It's time for new tires, and I've narrowed it down to the Kuhmo Ecsta SPT and the Sumitomo HTRZ3. The S is my daily, but I also autox it. Right now I only have one set of wheels, so having a dedicated autox set isn't an option. Any thoughts either way about these? Which would you choose?

 

The HTR Z III is in a higher performance category than the SPT, and seems to get about equal survey ratings to the SPT. However the HTRZ is also cheaper, so I would go with those.

 

HTRZ III

Hands down, millions better than the Kumho.

 

I've been very happy with the HRT ZIIIs on my S. SPT I don't know about, but isn't the XS the Kumho you'd rather have?

 

I went with the HTRZ3. 225 front, 255 rear.

 

 

the XS is a way better tire an pretty cheap.

 

htz3 ftw spt tire flex way too much in turns and thread is worse than htz3 even though both are 300 htz3 are softer more comfortable better in rain and grip better spt dont even compare GL

 

I run the SPTs, they hook great on my boosted civic , but on my S2k in stock AP2 sizes, I wish I had a little more grip. They have some autox and track days on them. I dont push the car past like 7/10's do give me some margain of error. I love Kumho and in the spring I will be upgrading to the XS.

 

The HTRZ III is a superior handling tire. We even have them listed in a different category. In the testing we did here I was impressed.
If I can help with the tires let me know.