15” Tire Pressures

Scott Harrison

"Growing old is mandatory, growing up is optional"
Staff member
Contributing Member
Conventional wisdom says low pressure is all that is needed. If you're running BFGs they are big enough for pickup trucks, so for a 2500 lb car 25 psi is all that is needed. and the ride is a little smoother. If you're running the Billboards, pressure should be higher.


Doug Wheeler
Contributing Member
On the road, I ran 28# front 26# rear with Billboards to minimize the hunting and so far am happy with 26# front 24# rear with Avons. For autocross I ran 20# all around.