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Old 11-24-2018, 08:26 PM   #1
Brand: Thor Motor Coach
Model: Vegas 24.1
State: British Columbia
Posts: 37
THOR #12227
Tire pressure

I have 2016 Vegas 24.1. The sticker for tire pressure inside the coach says 80 psi front and 75 rear. Yet Ed's manual says front 75 and rear 65. Thanks for comment.

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Old 11-24-2018, 11:17 PM   #2
Axis/Vegas Enthusiast
JamieGeek's Avatar
Brand: Thor Motor Coach
Model: Axis 24.1
State: Michigan
Posts: 8,484
THOR #1150
Take it to a scale and use the weight along with the chart from your tire manufacturer's site to figure out the pressures.

Here are the charts for Michelin:

2014 Thor Axis 24.1
2018 Chevy Bolt
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Old 11-25-2018, 01:37 AM   #3
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Brand: Thor Motor Coach
Model: Vegas 24.1
State: North Carolina
Posts: 1,657
THOR #2142
Jamie's correct. You will probably find that for the weight you are carrying you have been a little over inflated if you just went by the sticker in the unit...we were as we come in closer to what is in Ed's Manual (at least for the weight we have).

Sheree & Michael NCNG LTC(ret) with Munpi and Sheba (cat).
2016 Vegas 24.1 E350 5 speed "Ms. Enterprise", Bug-Guard Screen, Recliners, Infotainment Center, HUD, ARC Shower Rod, Safe-T-Plus, Curt SpareTire Mount,Tornado Black Tank Rinser, ext. WiFi Antenna, Roadmaster Tow Sys& Invisibrake.

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Old 11-25-2018, 11:45 AM   #4
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Brand: Thor Motor Coach
Model: 2017 Axis 25.4
State: Arkansas
Posts: 2,395
THOR #12231
On my 2017 Axis says 75 Front and 80 Rear on the sticker..... Are you sure you dont have them reversed?

Mine is based on the E450 chassis, I think the E350 has diff pressure? So check that as well.

I been playing them pressures over the last year or so and unless you maxing out your weights you wont need the 80 psi. I think some folks run 60 - 65 in the rear when unloaded for a smoother ride and then adjust pressure accordingly whe towing or maxing out weight.

I started at 72 / 72 then, 70/70 later I bumped it up to 75/75 so see if it made a diff on handling and MPG (I didnt notice any).

After I scale out I realized my front was within 500# of max weight and the rear was nowhere near. So now I been runing 75F/70R but for the winter on a warm day I will keep it around 75 - 77 in all tires while in storage. That seems to net me around 72 - 73 on cold days when I excerized the RV.
2017 Axis / 25.4: Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights, Fresh water surge tank, Black Tank Tornado flush, 4999 zip ties.
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Old 11-25-2018, 12:27 PM   #5
Senior Member
Brand: Thor Motor Coach
Model: 2013 31L
State: Florida
Posts: 1,913
THOR #908
get the four corner weights if possible, if not use the axle weights and add a bit more safety factor to your pressures.

I saw a noticeable improvement in ride and handling when I lowered my steer axle pressure accordingly...

Also, I learned from a tech support engineer at yokohama usa, that you can use load/pressure tables from any manufacturer for a given size. He told me that these numbers are standards that they all use, published through the "Tire and Rim Association"
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tire pressure

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