Am I at risk of having a blow out?.

So what is the OP going to do?

 

Insofar as tread, sure, but it's also the OP's CSA.

 

Would you be willing to drive for a company that told you to drive on that? Something that blatantly obvious, where else are they cutting corners, putting your life at risk?

I'm gonna disagree that it's not important to match up trl tires to their mate. A taller tire will try to go further per revolution than a shorter tire, scrubbing off tread when they're bolted together.

 

If you see somthing like this and have to ask a forum if it's going to blow out then maybe you should. Never mind.

 

the op should just pull the valve stem then stab a hole in the sidewall "e dont know what happened"

 

I thump them twice or thrice a day. I gauge them once a week.

 

LOL, you may make it around the block!

 

Yes, but I was asking for proof that 120 was over inflation. It may be the upper echelon of the inflation range but not necessarily too much.

 

Unless you're running real heavy, the center of the tread will probably wear faster than the outer edges, at 120 psi. Might not be enough to make it more susceptible to damage, or lessen handling noticeably, but will probably increase wear slightly. Major tire companies have charts available displaying the optimal tire pressures for the weight the tire is carrying, they provide a good start for the best compromise to getting the most from your tires.

Ha! Just remembered a driver that was topping off his tires at a shop I used to work at. He said the air hose isn't working. I check it, air comes out fine. Says "Won't add air to my tire". Check the tire, the gauge pegs out. "That gauge is wrong, my tire still bulges out against the road." It's a radial, it's gonna do that. "No." Whatever, man, I got paying customers to deal with. Went and checked the gauge on the shop supply air tank, 145pi, just like it's supposed to be. Wonder how long those tires lasted.

 

To sum it up, look at your tires for proof. Some are rated for 120, some for 110 or 105. More to the point check your tread. Quicker wear in the center indicates over inflation, wear on both shoulders indicates underinflaion, on most tires. I can't see your tires, and don't know how much weight you're carrying, so you may or may not be overinflating your tires at whatever pressure you choose.