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Sun Aug 09, 2009 7:48 pm

Start with what the car manufacturer suggests for pressures. You might need a little more or a little less, but not gobs either way. You will be in the ballpark.

Never exceed what the tire manufactuer list as "max inflation pressure" though.

Tue Aug 11, 2009 9:34 am

Randy in Maine wrote: Start with what the car manufacturer suggests for pressures. You might need a little more or a little less, but not gobs either way. You will be in the ballpark.

Never exceed what the tire manufactuer list as "max inflation pressure" though.

That's good advice. Had a Jeep and put some geolanders on it. They road way too shoft at factory pressure. I played around with the pressure, all the way up to the tire max and below the Jeep spec and settled on a little higher then facotry but far lower then tire max.

Wed Aug 12, 2009 9:51 pm

I can't believe i read that entire argument, haha.

I run RA08's. They were the same price or slightly more to have put on than regular passenger tires, but i knew that they could do whatever i asked of them. I also get the satisfaction of knowing i have properly rated tires. They handle phenomenally better then what i had on before and i have yet to have a single problem with them. Are they $20 more each than some others? Yes. But anyone with half a brain can save up a bit and buy better tires.

If you want truck tires for off roading and lift then fine, who cares? They don't handle as well, they weren't designed for street performance, i think everyone forgot that, like you said: apples to oranges. Our Suburban and other trucks actually go off road and do what trucks were meant to do. People can go through truck tires pretty quick, depending on the application. They don't need really long life when they're more likely to suffer a different fate then tread wear. Their tires were designed with other things in mind. If i want handling and life i wouldn't buy a truck tire.

If one person wants to run truck tires or car tires or whatever the h*ll you were going on about then let them. Obviously if they wanted a different tire they would have bought them. Period.

Towards the end of reading that i forgot what both of your main arguments were, haha. And i laughed when i noticed the hour or so gaps between each posts. I can only assume it was spent tearing apart the net for facts to throw out. Let's put the two of you in a regulated debate setting where you need facts to prove your point before you start.

Wildthings wrote: As for Randy, if you have four square feet of rubber on the road you are running your tires with way too little air, you had better check your pressures. The tire patch is no where near that large and is actually smaller for a "C" truck tire than a P-metric, because the overly stiff sidewalls keep the tread from flattening against the pavement. The original Michelins radial tires either car or truck would likely have had much softer sidewalls to give better traction, handling, and tread life.

Now you're assuming that his father was driving a bus. What if it had been any other kind of vehicle? It's a saying (and a very good one Randy) no need to pick it apart. It actually hurts your argument. And never insult a mans father, haha. That's something I live by.

Wed Aug 12, 2009 11:30 pm

Randy in Maine wrote: Start with what the car manufacturer suggests for pressures. You might need a little more or a little less, but not gobs either way. You will be in the ballpark.

Never exceed what the tire manufactuer list as "max inflation pressure" though.

As far as I know, maximum still means maximum, the very top limit. It's the max the tire should ever be subjected to. Has absolutely nothing to do with the pressure the vehicle needs. It does not mean recommended. Tires don't say recommended. How could they since they don't know what vehicle they will be used on? Only the vehicle manufacturer knows what pressures to run them. And those specified pressures arn't just for any tire that someone might throw on there. Those pressures are for the tires which they have specified as being required. The vehicle manufacturer knows what tire specifics are required to be best suited for the design and characturistics of the vehicle. It's all a single combined design. The vehicle-the tires-the tire pressure.

Do the pressure as Randy say's. Simple. No brain work involved. It's the extra non required brainwork that usually messes up the whole show.

Thu Aug 13, 2009 7:40 am

One of the advantages of modern P-metric tires is that they are not pressure sensitive, you can pretty much pump them up to their maximum cold inflation pressure and (within reason) run them no matter the load up to the maximum rated load. The belting on P-metric tires is strong enough and stiff enough to resist the outward forces of the pressure thereby keeping a nice flat non squirming tread, that runs cool and lasts long.

Some light truck tires seem to be capable of doing this as well, but many do not. My complaint against the Hankooks is that they seem to be a throwback to old bias tires when it comes to pressure. They are more sensitive to pressure than any non bias tire I have seen going back thirty years or more. Too little pressure and they will wallow and wear the edges, while too much and they will wear the centers. There is no doubt that with the stiff sidewalls and weak (soft) belting that they get a lot of tread squirm as well, which probably adds to their high tread temperatures and rapid wear.

Thu Aug 13, 2009 5:10 pm

I can't believe I read all this and now I am more confused than before I started. Was there any tire that was mutually agreeable? Sheesh...

Thu Aug 13, 2009 6:15 pm

The Hankook for one, Read Ratwell. Sorry, not tryin to stir up mud.

Thu Aug 13, 2009 8:02 pm

Wildthings wrote: ...There is no doubt that with the stiff sidewalls and weak (soft) belting that they get a lot of tread squirm as well, which probably adds to their high tread temperatures and rapid wear.

No doubt? I don't see any evidence of tread squirm or high tread temperatures except for this speculation. There seems to be plenty of room for doubt!

Sat Aug 15, 2009 5:01 am

Edd_o wrote: I can't believe I read all this and now I am more confused than before I started. Was there any tire that was mutually agreeable? Sheesh...

I will just send you a PM. :D

Mon Aug 17, 2009 11:09 pm

Hankook RA08 > I am ordering these tomorrow:

Had a nasty crosswind experience this weekend. Now after reading this thread, I realize have been running the wrong tires,... for the last decade. Education is an empowering and sometimes humbling thing. :oops:

Wed Aug 19, 2009 9:12 pm

Had to share:

Sun Aug 23, 2009 10:04 pm

Hahaha Holy Hell!

K, i have to ask...what are they?

Mon Aug 24, 2009 5:34 pm

cr@M wrote: Hahaha Holy Hell!

K, i have to ask...what are they?

No idea, but the bus also has hydraulics so I doubt that utility was any consideration.

Tue Aug 25, 2009 11:12 am

Looking at getting a set of these from c-list. Arizonian silver edition 185/70r/14. Will these be ok for my bus???

Tue Aug 25, 2009 11:45 am

kevinrco wrote: Looking at getting a set of these from c-list. Arizonian silver edition 185/70r/14. Will these be ok for my bus???

No 185/70R14 comes close to the axle load rating of a bus to my knowledge.

Tue Aug 25, 2009 1:37 pm

Plus they are pretty short.

You want to be turning about 811 times every mile with a circumference of about 25.65" with the stock 185R14s.

These would be turing about 860 times witha circumference of about 24.20".

You want to see the words "LOAD INDEX 97" or better on the sidewalls and be able to hold at least 44 psi also.

Thu Aug 27, 2009 11:09 pm

GeorgeL wrote: cr@M wrote: Hahaha Holy Hell!

K, i have to ask...what are they?

No idea, but the bus also has hydraulics so I doubt that utility was any consideration.

*shudders*

Fri Aug 28, 2009 8:29 am

kevinrco wrote: Looking at getting a set of these from c-list. Arizonian silver edition 185/70r/14. Will these be ok for my bus???

The Arizonian is the cheapest POS tire Discount tire sells. They used to be $35 each brand new (I think they got dropped) so if you are buying them used, they should be free.

Sun Aug 30, 2009 11:21 am

New Hankook RA08's are performing as expected. Much better than my previous rubber. Also did a new BOGE steering damper. These two along with new koni's have removed much of my freeway handling issues.

Wed Sep 09, 2009 3:06 pm

About to buy tires. Either Vanco8's or Hanooks. Anyone have a preference, and why? I'm partial to the Vancos, based on looks alone.