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Bias Ply Claws Pressure on and off road
Posted: Fri Dec 11, 2009 2:02 pm
by MR 1JZ
I have searched high and low around these parts for an answer to the above question...
I have done some googling but here:
http://www.jpmagazine.com/techarticles/ ... to_07.html has said they can be run as low as 3PSI?!
Ive got 35x13.5x16 Bias Ply claws on my bundera and I am wondering what PSI is good for them off road and on road.
They are running on 16x8 cruiser rims without beadlockers.
Posted: Fri Dec 11, 2009 3:17 pm
by tna racing
my bets would be, 35-40ish baring in mind that when they heat up they will expand.
and bout 18-20 off road
Posted: Fri Dec 11, 2009 3:24 pm
by MR 1JZ
that high?
bear in mind these are not radials...these are bias ply's
Posted: Fri Dec 11, 2009 3:29 pm
by bogged
Trial and error would probably be your best option. Onroad start at 30, then go for a run, see if they go up by much more than 4psi, if they do, then up them a few psi at a time.
Are they new? or used.. if they are used, they maybe a tad softer, and bag easier.
They could probably be down to 3psi - depending on what rig they are on, and you would want beadlock rims without doubt (at less than 10psi too probably)...
Posted: Fri Dec 11, 2009 3:51 pm
by MR 1JZ
they are used mate...ok no worries i wont drop them below 10psi...I havent really tried them below 18psi off road and while they are good from pictures I have seen they arent really even close to bagging even when on 2 wheels...
i might try them on 11psi this weekend
Posted: Fri Dec 11, 2009 6:26 pm
by alien
drop the pressure in your driveway as low as you think is appropriate - i'd say for a bundy prolly 8psi would be "ok" - although you wouldnt want to go doing fast corners on sand like that. - anyways - let em right down and really rock the car side to side (even get mates to help) - its fairly obvious if the sidewall is moving too much. I did this on my zuk at 2psi (31s) and it looked scary, however at 4psi there was a noticable stiffening of the sidewall. so now i know i can drop to say, 5psi without too much hassle - but im also running tubes, so mud etc in the bead wont give me flats anymore =)
Posted: Sat Dec 12, 2009 11:35 pm
by pigletracing
I ran bias claws for years, fronts at 11psi rears at 8psi for comps.. but I did have staun internal bead locks
Posted: Sat Dec 12, 2009 11:44 pm
by MR 1JZ
yeah I gave them a run on 11psi today...they worked fantastically!
I am going to invest in some beadlocks though I think
Posted: Sun Dec 13, 2009 11:57 am
by Spartacus
MR 1JZ wrote:yeah I gave them a run on 11psi today...they worked fantastically!
I am going to invest in some beadlocks though I think
i wouldnt worry to much about beadlocks.
Running a 16x8 and a 13" wide tyre, i think your tyre will go flat
before losing a bead.
i run 33x13 maxxis on a 16x8 at 8-10 PSi.
previously run a TSL 12.5 wide in a 15x8 = same thing