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Charlie D.

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Posted: 08/28/21 06:13pm Link  |  Quote  |  Print  |  Notify Moderator

New camper has Westlake ST205/75R15 tires on it.
Going to replace them with Endurance. While checking prices I came across ST225/75R15 Endurance for $15.00 each more tire. Would you use 225 vs. 205?

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Posted: 08/28/21 06:42pm Link  |  Quote  |  Print  |  Notify Moderator

If you have the clearance above and the space between the tires I don't see a problem.


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Posted: 08/28/21 09:07pm Link  |  Quote  |  Print  |  Notify Moderator

are load range E? I feel one is a D tire. Might be wrong but we bought the E rated endurance.

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Posted: 08/28/21 10:21pm Link  |  Quote  |  Print  |  Notify Moderator

I stayed with 205. Capacity is greater than my GVWR. Been on several years, no issues.


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Posted: 08/29/21 07:27am Link  |  Quote  |  Print  |  Notify Moderator

The trailer shows a 7495 GVWR = 1875 lbs per tire....
Dry weight says around 6265 = 1560 lbs per tire....

This = around 1200 lbs of CCC so most likely the trailer will weigh close to its 7495 lb max gvwr.

The Endurance ST 205/75-15 load D at 65 psi and a 2175 lb load capacity will give the trailer a nice 15% load reserve capacity. ?

Some tire dealers have excellent experience with trailer wheels tech and tires tech (matching pressures/load capacities/proper width/etc).......others ??.
For this trailer I would stick with the OEM sizes/load ranges.
edit ....jim

* This post was edited 08/29/21 08:15am by JIMNLIN *


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Posted: 08/29/21 08:35am Link  |  Quote  |  Print  |  Notify Moderator

Good call dumping the Chinese JUNK!!! You will be happy with the Endurance. If you up in Load range from D to E use the Load/inflation chart for your tire. Most likely you will be running 65psi the same as the D's.


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Posted: 08/29/21 11:06am Link  |  Quote  |  Print  |  Notify Moderator

OP, this sure seems like something you can figure out without asking the Internet forums opinion…
But since you did, I’m not in the habit of tossing new tires in the garbage. I’d run them for a while.

Hope that helped! Lol.


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mooky stinks

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Posted: 08/29/21 03:14pm Link  |  Quote  |  Print  |  Notify Moderator

JIMNLIN wrote:

The trailer shows a 7495 GVWR = 1875 lbs per tire....
Dry weight says around 6265 = 1560 lbs per tire....

This = around 1200 lbs of CCC so most likely the trailer will weigh close to its 7495 lb max gvwr.

The Endurance ST 205/75-15 load D at 65 psi and a 2175 lb load capacity will give the trailer a nice 15% load reserve capacity. ?

Some tire dealers have excellent experience with trailer wheels tech and tires tech (matching pressures/load capacities/proper width/etc).......others ??.
For this trailer I would stick with the OEM sizes/load ranges.
edit ....jim


Are you forgetting tongue weight deducts from axle weight? The 7500 GVW would be closer to 6500 on the axles.


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Posted: 08/29/21 04:03pm Link  |  Quote  |  Print  |  Notify Moderator

Agree with most posts above!

First thing, I'd run the Westlakes, for a couple years or so, depending on miles, and proper care.

Next thing...yes the Endurance is likely a better tire choice!

After deducting tongue wt, 6,500 is a close wt estimate on the tires. The OEMs have plenty of margin, fit the fender/wheel well clearance, a good fit for OEM wheels.

When time comes to replace the Westlakes, the Endurance, in the oem size, and D-rating, at 65 psi, is best option.

Jerry





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Posted: 08/29/21 07:50pm Link  |  Quote  |  Print  |  Notify Moderator

225s may not have enough clearance between tire and suspension or frame of the RV. I tried to switch to 225s and they were a no go.

A given size of Goodyear Endurance has a higher load and speed rating compared to the same size in other brands of tires.

I mention it in this video


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