What PSI are you running?

[jordantii]

Just picked up my 25 RR and see that the titre PSI shoild be 39 all around. TPMS is showing 43-44. I'm going to bleed down to 39 but was wondering if anyone is running anything other than factory 39. This would be for on road/asphalt.

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[stuartmunto]

Yeah 39psi cold is what I run. There’s many comments here about dealers not lowering pressures for customer delivery

They come over inflated from the factory for transport

 

[Chuck2001]

I run 35-36 on my KO3.

38 on my studdless because mushy and I'm lazy to inflate in the cold when pressure drops

 

[GLW]

After chalk testing I run an unloaded RR truck with 34 on the rear and 36 on the front.

 

[bobclarkenorway]

I'm running 40 in Norway with studded tires.

What is a chalk test?

 

[GLW]

I'm running 40 in Norway with studded tires.

What is a chalk test?

 

[natethegreat42]

I run my 2025 XLT at 35 cold, as that is what the sticker says to keep it at. Yeah when mine arrived earlier this year, it was at like 40 psi and you could tell with the ride being a little rougher.

 

[Dre' Dawg]

I'm running 40 in Norway with studded tires.

What is a chalk test?

I was thinking the same thing so I Googled it.

" The tire chalk test finds the ideal tire pressure for even tread wear by drawing a chalk line across cold tires, driving a short distance (forward and back), and checking if the chalk wears evenly across the entire tread or just the center/edges, indicating over- or under-inflation. Center wear means overinflated (let air out); edge wear means underinflated (add air), while even wear signifies correct pressure, a key technique for off-roaders and anyone with aftermarket tires to optimize grip and safety.

 

[jordantii]

I need to make sure the TPMS is calibrated properly. After less than a mile I see 44 from 39.

 

[Peter949]

Mine is 39 cold. So around 43-44 when I'm driving.

 

[DirtDerrick]

36 front cold, 34 rear. Interstate driving I go up a little.

 

[bobclarkenorway]

Thanks for the info! appreciate it, I will try this as shown on the video.

 

[Dingus83]

36 although I've been putting weight on, I'm usually a 32" waist. Oh wait, tire pressure, yes 36 psi on that.

 

[6speeder]

At the Assault course they run the stock wheels/tires at 32 PSI front and 28 rear. I run mine at 32/32, for a better ride. I also run my 2 door Wrangler at 32/32, same tires. Seem to wear evenly.

 

[Aero98]

When I got the truck from the dealer, the psi was 47 all around. I thought that was a bit much and then saw both the app and the door panel that shows 39 is the recommended. So, I set them to 39 psi cold.

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