Airing down with 16.5 rims...

[Zeus33rd]

Whats the consensus on how far it's safe to air down a tire on a 16.5 wheel with no beadlocks? Am I safe at 10-12lbs?

42" TSL's on steel 4" back spacing "wagon wheel" rims...

 

[cybrfire]

I think things will get touchy for you at 10 lbs. All depends on the side loading of the tire. I've wheeled with as little as 10 before the beadlocks and most of the time it was OK. Sometimes not. I think you and I need to hook up on some beadlocks!!

 

[joez]

Tire and rim width's?

 

[84_Chevy_K10]

I've seen them come off at 15 PSI in mud. I'd run full street pressure until the beadlocks come.

 

[Zeus33rd]

Rims are 8.25x16.5 and the tires are 42/15.5/16.5. Beadlocks are definatley a must.

 

[55Willy]

7psi is what we ran at the coast, 78 burb 33's...

 

[Ryan B.]

my friend kevin popped a bead on his 37x12.50x16.5 ssr, at over 20 psi pressure. granted we winched on him from a bit of a side pull but if he slammed it and put a big side load on it i'm sure the same thing would have happened..
That same weekend i popped my 38x13x16's off the bead TWICE both days.. at 10 psi or so, slamming the sidewall trying to climb out of a mud hole with some speed. And those are 16s with a safety bead, so i would think 16.5s at 10psi would be a bad idea. I think zakk had no problems and would run around 18-20psi.

 

[divorced]

I was letting air out of my 16.5's so my jack could lift the transmission high enough. I put the core back in when the tire was a couple inches from being flat and somehow it fell off the bead.

 

[bigcountryk5]

on an 8 and a quarter wheel i'd run full street pressure with 42's just my .02 though i'd rather have to get pulled out than have to change a tire in the worst possible obstacle which is always where the tire decides to come off the bead.