Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

Airing down with 16.5 rims...

Discussion in 'The Garage' started by Zeus33rd, Mar 13, 2005.

  1. Zeus33rd

    Zeus33rd Smarter than you GMOTM Winner

    Joined:
    Mar 14, 2002
    Posts:
    7,324
    Likes Received:
    9
    Location:
    Grass Valley, CA
    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? :thinking:

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

    cybrfire 1 ton status Vendor GMOTM Winner

    Joined:
    Dec 15, 2002
    Posts:
    15,139
    Likes Received:
    565
    Location:
    Iowa
    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!!
     
  3. joez

    joez 1/2 ton status

    Joined:
    Oct 21, 2003
    Posts:
    2,512
    Likes Received:
    0
    Location:
    New Lenox, Illinois
    Tire and rim width's?
     
  4. 84_Chevy_K10

    84_Chevy_K10 Banned

    Joined:
    May 30, 2001
    Posts:
    17,669
    Likes Received:
    0
    Location:
    IL, USA
    I've seen them come off at 15 PSI in mud. I'd run full street pressure until the beadlocks come.
     
  5. Zeus33rd

    Zeus33rd Smarter than you GMOTM Winner

    Joined:
    Mar 14, 2002
    Posts:
    7,324
    Likes Received:
    9
    Location:
    Grass Valley, CA
    Rims are 8.25x16.5 and the tires are 42/15.5/16.5. Beadlocks are definatley a must.
     
  6. 55Willy

    55Willy 3/4 ton status

    Joined:
    Jun 2, 2001
    Posts:
    9,946
    Likes Received:
    0
    Location:
    Keizer, Or
    7psi is what we ran at the coast, 78 burb 33's...
     
  7. Ryan B.

    Ryan B. 3/4 ton status GMOTM Winner

    Joined:
    Jul 18, 2001
    Posts:
    5,693
    Likes Received:
    0
    Location:
    CA
    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.
     
  8. divorced

    divorced 3/4 ton status

    Joined:
    Jul 20, 2004
    Posts:
    5,115
    Likes Received:
    0
    Location:
    .
    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. :confused:
     
  9. bigcountryk5

    bigcountryk5 1/2 ton status

    Joined:
    Mar 13, 2004
    Posts:
    931
    Likes Received:
    0
    Location:
    G-vegas(Greenville) South Carolina
    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.:doah:
     

Share This Page