Air pressure on front tires 2018 Cornerstone

[RichYL]

Just wondering what are most of you running as front tire pressure? I have a 2018 Cornerstone, thanks

[Magic-carpet]

Originally Posted by RichYL

Just wondering what are most of you running as front tire pressure? I have a 2018 Cornerstone, thanks

We are running 115 on the front steer tires but this is based entirely on our 4 corner weights taken with our typical load in the coach. If you do not know what your weights are, you should run closer to the max pressure for the tires on the sticker behind the drivers seat.

[Dutch Star David]

Originally Posted by RichYL

Just wondering what are most of you running as front tire pressure? I have a 2018 Cornerstone, thanks

Weigh each wheel position separately. Consult tire manufacturer's website to find proper inflation.

[Gary.Jones]

Rich

My guess is that you don't have accurate 4 corner weights or you would not be asking the question. Within the past 2 months, there has been a thread on here about tire pressures and 4 corner weights and I provided my weights and pressures and several others provided Cornerstone weights and pressures. The weights and pressures will be different for each model and year so you need to find the one that is the same as your coach, until you can get it done right. I will look for you but if you scroll back a couple of pages, you will find the thread and it should give you some reasonable ideas. If not, ask someone for your specific model and year and my guess is that you will get someone to give you the weights determined for their coach. Also, the specific tires on the coach are an issue, but I am assuming that your coach is a recent model and you still have the OEM tires on the coach.

Oh, and you would do yourself and all of us who try to respond to questions a real service by putting your model and year of coach in a signature so that we know what equipment you have. Our advice varies by what specific equipment you have. You can add the signature by going to the UserCP near the top of the page and in the list of things that you can do, you can create a signature.... its easy

Gary

[Rollin101]

I also run 115 psi in the steer tires.

[Anthem46]

I run 115lbs. also. Have had our coaches weighted & it always shows around 100LBS. for front tires. The tires looked low @100lbs. I feel safer @ 112 to 115. Good luck with all your choices on your 2018 CS. Check out all the RALLYS. They are GREAT FUN & you meet a lot of other owners that have a lot of knowledge.

[tom chelbana]

On our 2018 London Aire with K3-605 Spartan chassis says 125 for the front, 85 for drive and 115 on tag. We just got our coach so till we have it weighted thats a good place to start. Your Cornerstone should weight close to London Aire.

[Gary.Jones]

Tom

If he runs those pressures (placque pressures) he is going to have a very rough ride!!!

Gary

[Anthem46]

I tried the SPARTAN SCHOOL recommendation. But I ended up with 115 in the front 85 on the drive and 90 on the tag. And that's what I've done on all of my cornerstones. The anthem actually in a little higher

[hpykmpr47]

Had our 2016 Anthem weighed at Spartan in June and it came out 400 lb over on the front axle requiring us to have the max of 130 lb in our front tires. I since moved some things around and I think got a bit of weight off the front and dropped my pressure back 20 125 lb....Alan

[dcphil_98]

I agree with Tommy. With 110-115 in front at about 75 degrees ambient, the pressure will go up to 125-130 on the road. On the road, it is not unusual for the tires on the sunny side to be 3-5 psi higher that the shade side. Many factors such as outside temp, road surface temp, sun and elevation can change the pressures up to 10-20 psi.

[DSL417]

Based upon 4 corner weight, I run 115 on the fronts...and all the coach manufacturers start those fronts at 125...don't know why, but one would think they would want a little softer ride as well as having some tie to 4 corner weights:(