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  1. #1
    Seasoned Camper Kamper's Avatar
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    Up sizing tires from 235/80R16 to 235/85R16 ?

    Has anyone up sized their tires to 235/85R16 to take advantaged of the additional 220 pound extra Max Load capacity per tire? That would give me additional 880 pounds of capacity for not much more money. The tire is just 0.9 inches taller and 0.3 inches narrower on thread width. I don't see any reason not to do this but wondered if anyone had done this with any negative impacts. Thanks for any feedback given.

    Happy Kamping!!
    Kamper
    Johnny & Mary
    Henderson, NC 4 Now
    2014 Solitude 369RL
    2015 Silverado 3500HD Crew Cab High Country
    24K Pullrite ISR 5th Wheel Hitch with Super Rails

    :cool:

  2. #2
    King Pin
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    I did that size change when I went from Westlakes to Goodyear G614s. It was interesting that when I compared the two tires side by side, they were exactly the same height. There was zero difference in the inflated height.

    Jim

  3. #3
    Seasoned Camper Kamper's Avatar
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    Thanks Jim. You are a world of knowledge and you have helped a lot people. Thanks again!
    Kamper
    Johnny & Mary
    Henderson, NC 4 Now
    2014 Solitude 369RL
    2015 Silverado 3500HD Crew Cab High Country
    24K Pullrite ISR 5th Wheel Hitch with Super Rails

    :cool:

  4. #4
    Long Hauler bertschb's Avatar
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    Jan 2015
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    Bend, OR and Palm Springs, CA
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    I replaced my factory Westlake 235/80R16 G rated tires with Sailun 235/85R16 G rated tires because the 85's have a 132 load index rating vs. 129 for the 80's. That's about 330lbs more per tire. Quite a difference. Sailun told me the tires are constructed the same but the tread on the 85 is thicker. I only towed my 5th wheel 25 miles with the factory tires before I replaced them so I can't speak to any differences between the two sizes.

    I couldn't find a reason to go with the 80's either...
    Brian & Kellie
    2020 Solitude 310GK-R, FBP, 1,460w solar, 540ah BBGC3, MORryde IS w/disc brakes
    2020 F-350 Platinum SRW Powerstroke Tremor, 60g TF fuel tank, Hensley BD3-F air bag hitch

    Previous setups:
    2019 Solitude 373FB-R, 2019 F-350 Platinum DRW Powerstroke, Hensley BD5 air bag hitch
    2016 Reflection 318RST, 2016 GMC 3500 Denali SRW Duramax, Hensley BD3 air bag hitch

  5. #5
    Site Sponsor JCR GD's Avatar
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    Mar 2015
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    When I got my Sailuns a few years ago the 85s were easier to find. No ill effects.
    Jim (& Sharon)
    2015 GD Momentum 385TH - SOLD
    For Sale - 2015 Ford F-350 DRW 4x4 Lariat w/ AirLift bags, Titan 65 gal. OEM replacement fuel tank.
    The toy:
    2017 RZR XP 1000 EPS SE

  6. #6
    Rolling Along RVRunners's Avatar
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    I have F rated 12 ply 85’s no issue. Any height difference is minimal and tires are better than OEM.
    The Adams - 2017 Reflection 367BHS, 2019 F-350 6.7L PSD 4x4 CC DRW, B&W hitch on Ford pucks, Air Lift Loadlifter 5000 Ultimate Plus air bags, "Rupert" the Weimaraner.

  7. #7
    Seasoned Camper
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    Going to get my Sailun's tomorrow. Stepping up from 80 to 85 was ok'd by Grand Design. Wheels are also rated for 110 PSI.
    Steve
    2017 F350 6.7 Lariat DRW
    2017 Momentum 388M
    North of Houston

  8. #8
    Seasoned Camper 2825Matheny's Avatar
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    1st - I do not side with the "China Bomb" crowd. Tires made in China are fine by me.
    I am on the front end of researching my next set of tires. I have looked at Goodyear, Westlake, Sailun, Carlisle, LEAO, Tow Master, and Maxxis.
    Load Range G is what I will have, so that ruled a couple of these out. Price is a consideration, so my checkbook helps me make decisions. I will not put LT tires on my trailer. ST is designed for that duty, so that is what I am sticking to (this means no Goodyear G614's)
    I liked what I see in reviews and specs about the Westlake LRG ST235/85R16. But, I am not having luck finding a source at a reasonable price. When I researched Westlake tires I learned that their parent company is big, way big, and they make tires under different brands too. One tire that is in the Westlake "family" is a company called LEAO. So far it is the front-runner for the direction I may go. It has the best specs of any LRG ST tire I have found and the price is very reasonable and they are available from a large online tire store with $0 shipping and $0 tax.
    Here is a link to my Google Folder that has my current research in it with info about all of these brands.
    https://drive.google.com/open?id=1hL...4qQvPLHg8TR7vG
    Attached Thumbnails Attached Thumbnails #3 - Replacement.pdf  
    Last edited by 2825Matheny; 03-23-2019 at 07:19 AM.
    Peggy and Jamey Matheny
    2016 Grand Design Solitude 5th Wheel 369RL Serial #G1104808
    As of 19 April 2019, 792 nights and 23,887 trailer miles.
    2015 Ford F-250 4X4 Super Cab SRW 148" WB 6.7L Powerstroke Diesel

  9. #9
    Seasoned Camper
    Join Date
    Dec 2018
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    I went from the 80 to 85's gained 780 lb per tire, from 3620 to 4400 per tire. I bought from etrailer.com, and they were not that much more in price from the others.
    2012 Chevy 3500 DRW DURAMAX
    2016 Momentum 397th
    TOY 2013 800 RZR LE

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