P500 LOWEST AIR PRESSURE ON 28" TIRES

[Steve00]

What is the lowest air pressure I can get away with on 28" tires were 12" rims without the bead locks? Right now I got them at 5 PSI

 

[Markdale]

What is the lowest air pressure I can get away with on 28" tires were 12" rims without the bead locks? Right now I got them at 5 PSI

I ran at 3 psi for a while, the bumps were better but steering was hard and handling was crap

 

[Backwoods]

Be careful I have had a front tire break the bead turning with 5 PSI.

 

[Markdale]

I am now running at 7 psi with upgraded suspension (Elka recommended 7 psi).

 

[Backwoods]

I am now running at 7 psi with upgraded suspension (Elka recommended 7 psi).

Seven PSI also worked great for me.

 

[pappyo]

Things to consider when running low tire pressure. ( 5 lbs.)
Sidewall ply rating ( 6 or 8 being min )
Riding style ( slow or aggressive)
How far off road you' ll travel ( especially if alone )
For slow speed crawling you should be able to get away with 5#. ( Sudden drops , impact or push to hard against object ) could give greaf.
Faster & more aggressive riding the unseen surprise sudden hard impact ( rock / hole / log ) HAS Caused Many of Bead to Brake & Side Wall to Cut.
Going down the trail at 10mph - 20mph & up in a 1000# SXS plus gear driver ----impact generates ( Tons NOT pounds) 5 # tire pressure would not take much of that type of impact.
Hope this has helped & not too long.
ITP MUDLITE XTR 6PLY 27X912 FT.--27X11X12 REAR ( Slimed )
Depending on load --6.5 lbs to 8.0 lbs. Gives decent ride & good traction ( W.E. Shocks with heavy springs )
SLIME , AIRCOMPRESSOR & Tire Repair Kit have saved my Tush more than 1 time. ( no spare ) usually alone 12 -- 15 miles off road.

 

[Smitty335]

What is the lowest air pressure I can get away with on 28" tires were 12" rims without the bead locks? Right now I got them at 5 PSI

I run 9 to 10 PSI, but have a P1-5, a lot heavier machine with 30 inch ITP Terra Hooks on 14 inch rims?

 

[Steve00]

Thanks everyone. I'll go with 7lbs on all 4 there 28" on 12 inch wheels. That should be good and safe for what I need. I don't drive too aggressive

 

[JenElio]

I think you should be ok with that on a 500. 7# should be enough to give you a little better ride comfort.

 

[trigger]

FWIW I ride 28's and found that it steers better with a little more psi in the fronts. I'm running 9 in the rear and about 11 1/2 in the front. Little more bite and less float.

 

[Peter_72]

It really depends on the tire, the thicker the tire the less psi it will need. The tire on the stump is 28” and was flat for 24 miles and never had a problem