The load rating needs to be 91 or higher.
The load rating needs to be 91 or higher.[/b]
I checked my user manual and double checked and the US spec 6 requires a load rating of 91. And yes, I have read this thread and your last post. According to Mazda, that tire is NOT sufficient enough for the 6.Another company steps up with a 20" tire that has a load rating that is high enough for the 6
Kumho ECSTA SPT
(Ultra High Performance Summer)
Serv. Desc: 90Y
I didn't want to copy your whole post, but I do see what you are saying, and I do agree..I checked my user manual and double checked and the US spec 6 requires a load rating of 91. And yes, I have read this thread and your last post. According to Mazda, that tire is NOT sufficient enough for the 6.[/b]
Well at the OEM I work for, we allow 50lbs reserve when making tire load calculations. I wouldn't call that "a lot" more than 33lbs.
Also remember that the front of the car weighs a lot more than the back. Mazda likely also assumes that you're not going to pile a couple hundred pounds on the hood and go driving around. So when they create the GAWR ratings they do it by putting in passengers and stuff in the trunk. Well pretty much all the weight in the trunk goes on the back axle and most of the back seat passengers does too. The front seats are right about in the middle of the car, so essentially the front GAWR rating is the curb weight plus half the front seat people weight.
So when you say you will NEVER come near the weight limit of your car, guess what, with two 200lb people in the front seat you are already just about there. Even when fully loaded, the front axle still has a higher load than the rear.
On the other side of the equation though is the fact that Mazda likely specs the load rating based on the combination of car with the HIGHEST load rating, so that they can use a common tire. So that 50lb reserve likely only applies to a V6 with all the options. An I4 is about 100lbs lighter on the front axle, so there's another 50lbs right there.
The OEMs have to provide load ratings such that tires will NEVER have a problem. If you want to use a lower load rating, you'll likely be fine about 99% of the time. That's not good enough for the OEMs, but if that's good enough for you, then go for it.[/b]
If you are serious about the widebody, I would get the widebody kit first and then fit tires on it. How wide of a tire you get and the offset of the rim you choose is going to depend on your widebody kit and what can fit. It makes no sense to get a wheel and tire now, especially in 20s which are going to probably cost you a good chunk of change, when you are going to get a widebody kit in a year.i've read a lot of this thread, and there is a lot to f-in read. but i personally do like the way 20's fill the wheel well. however. i'm not a fan of blowin out my tires especially since i live in the shithole that is michigan. the only reason i was considering 20's is cause next year i'm going to put on a custom widebody kit. if i'm going with wider tires will they meet OEM load ratings? i don't know much when it comes to tires. if not, i want some wide 19's. information would be nice. ridicule... that will probably be what i get instead seeing how this thread has unravelled. ha ha! what a funny play on words. lame.[/b]
Don't know how wide of a tire you'll be able to fit with the widebody, but overall diameter-wise:
all work (are the proper o.d. and have enough load rating, assuming reinforced).[/b]
Man, o man I'm in trouble. See I went out and baught a MS6 before joining these forums. I wanted RIMs and ordered from WheelTec, a Mazda vendor. I picked out some based on looks, they guy says what size? I say, what size is best for that car? he says "whatever you like", um you think 20's will be ok? Yeah 20's are fine. I said, will it hamper performance much, he's like no, just a stiffer ride. So I say, ok fine give me 20's.To educate newbies that 20" is not a good idea.[/b]