Kumho Ecsta SPT Tires
#1
Kumho or Sumi Tires
Is anybody running Kumho Ecsta SPT or
Sumitomo HTR Z III tires?
If so, what do you think.
Sumitomo HTR Z III tires?
If so, what do you think.
Last edited by wellby; 09-11-2009 at 01:37 PM. Reason: Add lines
#2
Most folks here seem to prefer the Sumi's. Never tried them myself.
Jon
#3
Have the Kumho's on my viper srt 10 vert. I have tracked it twice and so far so good on the tires. Looking for something to put on my stock 18 inchers for track duty on my tt though.
#6
Between the two the Sumi's are the best. If someone calls and wants Kumhos and the Sumitomo's are available, I will make them aware of it as a substitution. They have proven themselves to be a better "bang for the buck" tire.
Feel free to call me if I can help.
Thanks.
Feel free to call me if I can help.
Thanks.
__________________
damon@tirerack.com
877-522-8473 ext. 4643
574-287-2345 ext. 4643
**Don't forget to add my name to online orders!**
Or use this link:
http://www.tirerack.com/a.jsp?a=BH1&url=index.jsp
damon@tirerack.com
877-522-8473 ext. 4643
574-287-2345 ext. 4643
**Don't forget to add my name to online orders!**
Or use this link:
http://www.tirerack.com/a.jsp?a=BH1&url=index.jsp
#7
Ive got the Kumhos, just replaced the rears yesterday. Excellent bang for the buck. I haven't tried the Sumi's yet, might do so next round but in all honesty, I'm very happy with the Kumhos and not really motivated to try something else outside of the "why not" factor.
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#9
Kumho vs. Sumitomo
First a sidelight...
I bought a set of the Kumho Ecsta SPT for my 2007 Mercedes S550v...staggered sizes with 255-40-19 fronts and 275-40-19 rears. I made the BIG mistake of having the car aligned at Discount Tires under a "life time" agreement. With the airmatic suspension, the ride height has to be adjusted first, then the camber. Discount Tires' "instructions" on how to operate the alignment machine indicated the camber was 'non adjustable."
So after 17,000 miles, the Kumho's are shot with the inside portion of the tread being totally gone. In some ways I'm not sad as the Kumho SPT has a very agressive tread design (good), but they are so noisy. They also flat spot overnight and take about seven miles to round out.
Rotating the Kumho's was an expensive pain as they are unidirectional and had to be dismounted, flipped over, remounted and rebalanced. Since the Sumitomo's are not unidirectional, I'm going with the Sumitomo SRT ZIII this time, and with the Mercedes store's alignment.
I bought a set of the Kumho Ecsta SPT for my 2007 Mercedes S550v...staggered sizes with 255-40-19 fronts and 275-40-19 rears. I made the BIG mistake of having the car aligned at Discount Tires under a "life time" agreement. With the airmatic suspension, the ride height has to be adjusted first, then the camber. Discount Tires' "instructions" on how to operate the alignment machine indicated the camber was 'non adjustable."
So after 17,000 miles, the Kumho's are shot with the inside portion of the tread being totally gone. In some ways I'm not sad as the Kumho SPT has a very agressive tread design (good), but they are so noisy. They also flat spot overnight and take about seven miles to round out.
Rotating the Kumho's was an expensive pain as they are unidirectional and had to be dismounted, flipped over, remounted and rebalanced. Since the Sumitomo's are not unidirectional, I'm going with the Sumitomo SRT ZIII this time, and with the Mercedes store's alignment.
#10
Kumho vs. Sumitomo
I'm not sure; bought mine from Tire Rack, as I will for the replacement Sumitomos. Go to tirerack.com and search for the size you want. I have found that even with the shipping and installation, they are still cheaper than buying from a local tire store.
#12
I have Ecsta SPT rears. Good price to performance ratio for street use. Fair on track, no squeeling when cornering.
On a road trip to Germany I noticed Ecstas getting wobbly on autobahn curves past 240 km/h. I think Ecstas have a bit too soft structure for very high speed use.
On a road trip to Germany I noticed Ecstas getting wobbly on autobahn curves past 240 km/h. I think Ecstas have a bit too soft structure for very high speed use.
#13
i had the kumos for a bit. its okay on a normal car (have tyem on my fx35), but theyare downright scary on the 996tt. scary and unsafe.
the sumis otoh are miles better than all OE N3 tires (save the pilot sport), but also LAST way longer.
the sumis are budget tires that really compete with the expensive tire brands.
so if you're considering the kumho or htr ziii....
htr ftw!!!
the sumis otoh are miles better than all OE N3 tires (save the pilot sport), but also LAST way longer.
the sumis are budget tires that really compete with the expensive tire brands.
so if you're considering the kumho or htr ziii....
htr ftw!!!
#14
These are on the fronts of my car. I'll be switching to Michelin PS2 after these wear off. I've always like the Micehlin's on my Vettes; low road noise, good rain traction, excellent warm weather traction and pretty decent on wear. I figure just as much good driving on these in a Porsche too.
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