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 > Poor handling with new Hankook 19.5's - anyone else?

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spotrot

Indian Rocks Beach, FL

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Posted: 09/01/13 02:25pm Link  |  Quote  |  Print  |  Notify Moderator

The Goodyear G670 rears had rivered badly and had little tread after 33k so I replaced the four with Hankook 245/70R19.5 A11's.

The RV felt really squirmy in the back, like the sidewalls flexed way too much. Turn the wheel to the right and it feels like the rear is sliding to the left.

After 4,000 miles and at different pressures it still feels squirrelly, and my wife agrees (I guess there's a first time for everything).

I had to replace the two fronts even earlier and the replacement Bridgestones felt fine (although they won't win any beauty contest).

Anyone else felt the same with this size Hankook lately?

Thanks

John

Ivylog

Blairsville, GA and WPB, FL.

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Posted: 09/01/13 02:33pm Link  |  Quote  |  Print  |  Notify Moderator

Too much air in new rear tires will do this. On a previous MH the dealer put in 120 even though I requested 95 and the back of the MH was all over the place until I reduced the pressure. How much does your rear axle weigh and how much pressure are you running? I recently put 6 new 11R/22.5 AH11 on the rear of my MH and it handles the same as before... very good.


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.

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spotrot

Indian Rocks Beach, FL

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Posted: 09/01/13 03:07pm Link  |  Quote  |  Print  |  Notify Moderator

"Too much air " seems counter-intuitive so I would never have suspected that, but thanks, I'll give it a try.

The dlr did inflate them high (105 psi. I have them now at 95 psi but will drop them to 80 psi.

The tires are so big relative to the load (I believe they use the same ones on 35" moho's and mine is a 30')that the actual load weight is not even on the chart. So I'll try the lowest number on the chart - 80 psi.

Lowering the pressure sounds crazy but I'll give it a try next week when I drive from RI to FL.

Thanks for the suggestion.

Swamp Rat

Helotes, Texas

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Posted: 09/01/13 03:32pm Link  |  Quote  |  Print  |  Notify Moderator

I replaced my Mich with Hankook AH11 in May and love them.

mike brez

milford ct

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Posted: 09/01/13 03:53pm Link  |  Quote  |  Print  |  Notify Moderator

I have 225/70r/19.5 AH11s I found the chart the same. For a single it starts at 80psi for 3,150lb and 80psi for 3,000lb dual. I guess you could always do the chalk test on the tire treads.


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jhilley

Buxton, ND

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Posted: 09/01/13 04:07pm Link  |  Quote  |  Print  |  Notify Moderator

I have Winnebago Adventurer 38G with the same size Hankook AH11 tires. 90# in front and 85# in rear, handles great.

Once had a problem when we left home below zero. As we were coming down the grade into St George, UT, the first warm weather we hit, it started acting poorly. Spent the night in Mequite, when cool in the morning there was over 100# in the front tires. Let air out down to 90# and handling returned.


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gbopp

The Keystone State

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Posted: 09/01/13 04:14pm Link  |  Quote  |  Print  |  Notify Moderator

I replaced the Michelin's on our Southwind with Hankook. No problems, I'll buy Hankook again.

enblethen

Moses Lake, WA

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Posted: 09/01/13 04:50pm Link  |  Quote  |  Print  |  Notify Moderator

Weigh your rig.
Then get the air pressure chart from Hankok.
Adjust your air pressure according to it.


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Ritglor

Warren, RI

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Posted: 09/01/13 05:14pm Link  |  Quote  |  Print  |  Notify Moderator

Same tires,A11's, on my Voyage for the past 3 years -- no problem. Would buy them again.


Richard

tropical36

Southwest Florida_USA

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Posted: 09/01/13 05:26pm Link  |  Quote  |  Print  |  Notify Moderator

spotrot wrote:

The Goodyear G670 rears had rivered badly and had little tread after 33k so I replaced the four with Hankook 245/70R19.5 A11's.

The RV felt really squirmy in the back, like the sidewalls flexed way too much. Turn the wheel to the right and it feels like the rear is sliding to the left.

After 4,000 miles and at different pressures it still feels squirrelly, and my wife agrees (I guess there's a first time for everything).

I had to replace the two fronts even earlier and the replacement Bridgestones felt fine (although they won't win any beauty contest).

Anyone else felt the same with this size Hankook lately?

Thanks

John

The same and correct size and you are talking about the duallies, correct?


"We are often so caught up in our destination that we forget to appreciate the journey."

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Chassis_7.4 Vortec Engine_4L80E Tranny_slide_tag axle.

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