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Hankook tire inflation question

Hoot887
Explorer
Explorer
A couple of weeks ago I posted that I had a question on newly purchased Hankook tires. Thanks for the input. New question... I purchased 6 245/70 19.5 AH11 tires. I called the Hankook headquarters in New Jersey to get an inflation chart which was promptly emailed to me. The chart say that if my front weight on each tires is 3,250# the pressure is off the chart below 60# for each tire. I know that the chart is accurate but I am wondering if anyone is running tire that low. It just seems that in 10+ years RVing I have never experienced tires inflated to below 8o#.
What pressure is anyone using for these tires?
Any input/advise is appreciated.
Hoot
12 REPLIES 12

RicoSuave
Explorer
Explorer
I found this web site to be of particular interest with regard to tire inflation. Click here. here
Richard and Iris
Puddles (Shih-Tzu)
2005 Coachmen Aurora 3480DS
2006 VW Beetle conv. & 2008 Wrangler X Toads

1963jarhead
Explorer
Explorer
I had a front end alignment because my MH was wondering all over the road,I have 6 new tires ( Honkook ) 245-70R 19.5 i was running 80# all the way around. At the garage they put 90# in all 6 and it drives like a different MH. By the way it,s a 33ft Winnebago sightseer.

mike_brez
Explorer
Explorer
dbates wrote:
Last year I replaced 6 Michelin tires with 6 Hankook 225/70R19.5. I called Hankook and they advised that I should use the same tire pressure that I had been using in the Michelins which was (70 #) and based on my verified MH weight. The Michelin tread had worn quite well for the 50,000 miles that I had run them and the ride is about the same now.

Dave
.


1998 36 foot Country Coach Magna #5499 Single slide
Gillig chassis with a series 40
02 Ford F250 7.3 with a few mods
2015 Wrangler JKU

dbates
Explorer
Explorer
Last year I replaced 6 Michelin tires with 6 Hankook 225/70R19.5. I called Hankook and they advised that I should use the same tire pressure that I had been using in the Michelins which was (70 #) and based on my verified MH weight. The Michelin tread had worn quite well for the 50,000 miles that I had run them and the ride is about the same now.

Dave
Plus New Brunswick, Prince Edward Island & Nova Scotia

pkunk
Explorer
Explorer
I don't think I'd go as low as 60# but 70-75# would be OK. I usually run abt 75 in mine on the front and 80-85# on the rear according to my weight.
1999 Coachman Mirada 34 ft.V10-F53 chassis
12ft.LR slide-2 gp31 AGM 12V @220AH

moisheh
Explorer
Explorer
Are you sure that your FA is only 6500 lbs. ??

Moisheh

ArchHoagland
Explorer
Explorer
Hoot....Did you weigh your coach and, if so, what were the weights?
2004 Monaco La Palma 36DBD
Workhorse W22 8.1 Gas Allison 1000, 7.1 mpg

2000 LEXUS RX300 FWD 22MPG 4020 LBS
US Gear Brakes

wolfe10
Explorer
Explorer
RicoSuave wrote:
I recently read somewhere on another RV website that the coach mfg. recommended PSI stated on that coach label should be used at all times. I currently am back to 80 PSI.


Hope that is bad advice. The coach label shows PSI based on each axle loaded to its GAWR. Hopefully, you are under that so PSI can be less. Only weighing will tell you.
Brett Wolfe
Ex: 2003 Alpine 38'FDDS
Ex: 1997 Safari 35'
Ex: 1993 Foretravel U240

Diesel RV Club:http://www.dieselrvclub.org/

RicoSuave
Explorer
Explorer
I recently purchased the very same tires for my MH. The dealer inflated the tires to 100 PSI which is the max PSI labeled on the side wall. However, the previous tires were never inflated beyond 80 PSI which is the recommended pressure listed on the manufacturer's inflation/weight label inside the coach. I recently read somewhere on another RV website that the coach mfg. recommended PSI stated on that coach label should be used at all times. I currently am back to 80 PSI.
Richard and Iris
Puddles (Shih-Tzu)
2005 Coachmen Aurora 3480DS
2006 VW Beetle conv. & 2008 Wrangler X Toads

tropical36
Explorer
Explorer
Hoot887 wrote:
A couple of weeks ago I posted that I had a question on newly purchased Hankook tires. Thanks for the input. New question... I purchased 6 245/70 19.5 AH11 tires. I called the Hankook headquarters in New Jersey to get an inflation chart which was promptly emailed to me. The chart say that if my front weight on each tires is 3,250# the pressure is off the chart below 60# for each tire. I know that the chart is accurate but I am wondering if anyone is running tire that low. It just seems that in 10+ years RVing I have never experienced tires inflated to below 8o#.
What pressure is anyone using for these tires?
Any input/advise is appreciated.
Hoot

Are the 245's the original size. Seems that 225's would do the job easily. Now having said that, I always provide a cushion of 10 - 15 psi over what's called for after weighing in fully loaded, to take care of any variables, like changes in ambient temps while traveling, just to name one. Soooooo, if I was to stay with the 245's, then I would at least run 80 pounds pressure, for whatever reason.
"We are often so caught up in our destination that we forget to appreciate the journey."

07 Revolution LE 40E_Spartan MM_06 400HP C9 CAT_Allison 3000.

Dinghy_2010 Jeep Wrangler JKU ISLANDER.

1998 36ft. National Tropi-Cal Chevy Model 6350 (Sold)

bluwtr49
Explorer II
Explorer II
Ivylog wrote:
Most charts stop at 70 which is min for keeping the tire on the rim.


Might not apply yo 19.5 tires.
Dick

2002 43' DP Beaver Marquis Emerald Cat C-12 505 HP, 1600 Tq
2003 Jeep Grand Cherokee Overland ---toad

Ivylog
Explorer III
Explorer III
Most charts stop at 70 which is min for keeping the tire on the rim.
This post is my opinion (free advice). It is not intended to influence anyone's judgment nor do I advocate anyone do what I propose.
Sold 04 Dynasty to our son after 14 great years.
Upgraded with a 08 HR Navigator 45โ€™...