Load index??
#1
Load index??
Alright so I ordered Kumo ecsta ASX off of tirerack last weekend and salesmanager calls me that TSX comes with load index of 93 pounds. Kumho ecsta ASX is 92 rated. He says probably nothing will happen given that i live in central california. Also Kumho ecsta ASX is Z-rated. I know many of the forum member is running this tires. Size I got was 225/40/18. What do you guys think? What are the chance that I might get a flat tire? I usually drive with one person on the passenger seat and pretty much nothing in the trunk. So let me know what you guys think.
#4
Senior Moderator
iTrader: (2)
Tirerack has all the info you need about tires.
http://www.tirerack.com/tires/tirete....jsp?techid=35
http://www.tirerack.com/tires/tiretech/tiretech.jsp
http://www.tirerack.com/tires/tirete....jsp?techid=35
http://www.tirerack.com/tires/tiretech/tiretech.jsp
#5
yeah I read that, it just basically tells me to run as high as i can but since i'm running 92 rather than 93, what am i really compromising?? I heard that you can get bubbles in the side walls. I'm not sure the "sidewall" here is referrering to fenders or the sidewalls on the tirewall, does anybody know what it is really?
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#8
Senior Moderator
iTrader: (2)
^^
Good question. I'm not sure and couldn't find any further info other than just numbers. However, the max load capacity is rated at the max air pressure of the tire. Most tires are inflated to approx. 32 psi and the max can be as high as 50 psi. So, it depends on the tire and the current inflated pressure, I guess it's possible to excess the load capacity if the car is fully loaded with people and luggage. Car weight + people + luggage.
Good question. I'm not sure and couldn't find any further info other than just numbers. However, the max load capacity is rated at the max air pressure of the tire. Most tires are inflated to approx. 32 psi and the max can be as high as 50 psi. So, it depends on the tire and the current inflated pressure, I guess it's possible to excess the load capacity if the car is fully loaded with people and luggage. Car weight + people + luggage.
#9
Team Owner
I've always assumed it was a static rating and that you would just take the weight of the car, add 850 (max weight capacity I believe), multiply by the F/R weight ratio and then divide by two to get the required load rating per tire. If its dynamic then the forces on a tire could be quite high, particularly braking into a sharp turn (as an example).
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