Kumho Ecsta MX (for stock wheel)
Jul 22, 2006, 09:18 AM
#1
Kumho Ecsta MX (for stock wheel)
Size/ Tire Weight/ Rim Width Range/ Section Width/ Overall Diameter
235/45-17 24lbs. / 7.5-9" (8)/ 9.4"/ 25.5"
245/40-17 23lbs. / 8-9.5" (8.5)/ 9.9"/ 24.8"
255/40-17 25lbs. / 8.5-10" (9)/ 10.3"/ 25.1"
According to this, is the 245/40-17 the optimal size for the stock wheel? Thank...
235/45-17 24lbs. / 7.5-9" (8)/ 9.4"/ 25.5"
245/40-17 23lbs. / 8-9.5" (8.5)/ 9.9"/ 24.8"
255/40-17 25lbs. / 8.5-10" (9)/ 10.3"/ 25.1"
According to this, is the 245/40-17 the optimal size for the stock wheel? Thank...
Last edited by 4-BNGR; Jul 22, 2006 at 09:20 AM.
good luck.
Jul 23, 2006, 04:38 PM
#6
I knew a lot of people that autocrossed with these... obviously, great drivers in slow cars... I can light these things up in my stock IX. The tirerack description about dry preformance is misleading. Paper weights for my EZ-up, nothing more. They are terrifying in the rain.
Jul 23, 2006, 05:07 PM
#7
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H-rated Kumho MXs? Where?
How can you compare the advans to these when the advans cost about twice as much? For many many weekend HPDE drivers the MXs is the choice because they stick well, tolerate heat well, and are a bargain for the performance they offer.
How can you compare the advans to these when the advans cost about twice as much? For many many weekend HPDE drivers the MXs is the choice because they stick well, tolerate heat well, and are a bargain for the performance they offer.
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Jul 23, 2006, 07:37 PM
#9
Performance comparison- description was "maximum dry performance sacraficing wet..." dry is equal to the advan in the rain with these. Anyway, I don't like them... 4-BNGR, interested? I will be at VIR next weekend. I paid $440 +s/h. $400 and they are yours. There's a tire guy at the track that could mount and balance them for you.
Jul 23, 2006, 07:42 PM
#10
Originally Posted by nukblazi
Performance comparison- description was "maximum dry performance sacraficing wet..." dry is equal to the advan in the rain with these. Anyway, I don't like them... 4-BNGR, interested? I will be at VIR next weekend. I paid $440 +s/h. $400 and they are yours. There's a tire guy at the track that could mount and balance them for you.
Jul 23, 2006, 09:33 PM
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Originally Posted by nukblazi
I knew a lot of people that autocrossed with these... obviously, great drivers in slow cars... I can light these things up in my stock IX. The tirerack description about dry preformance is misleading. Paper weights for my EZ-up, nothing more. They are terrifying in the rain.
I ran them in a torrential downpour this weekend at the SCCA Northeast Solo II Divisional, in a horribly underprepped car.
They worked great in the wet with good driving.
Jul 23, 2006, 09:51 PM
#13
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I run this and so far I am liking them, the big thing is you have to wear them down a bit before then get fast, at first I hated these tires but they are getting faster and faster each week autoxing or maybe I am just getting better but I think its a combination...
Jul 24, 2006, 02:26 AM
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the 245/40/17 are wayyy too small, and much smaller than the stock tires. They are NOT a good size replacement for the stock tires.
below is a chart of some numbers
Width Profile Diameter Total Diameter
235 45 17 25.33
255 45 17 26.04
245 45 17 25.68
245 40 17 24.72
255 40 17 25.03
tirerack recommends that you stay within 3% of the stock tire size. the 255/45/17 is 2.8% taller than stock and will affect the speedometer reading by 1.5mph.
below is a chart of some numbers
Width Profile Diameter Total Diameter
235 45 17 25.33
255 45 17 26.04
245 45 17 25.68
245 40 17 24.72
255 40 17 25.03
tirerack recommends that you stay within 3% of the stock tire size. the 255/45/17 is 2.8% taller than stock and will affect the speedometer reading by 1.5mph.
