Hartland TIres
Well just looking for info on Hartland Tires from Discount Tire. G Rated. Anyone else have them, experience with them. I haven't found anything negative with them.
Forum Discussion
My experience has been just the opposite. When I had five service trailers/28 tires on the road for a living using the same axles/tires/wheels on a rv trailer we learned the expensive way the folly of derating especially a G tire to 80 psi or a E tire to 65 psi.
Were not talking small TTs or just experience with a couple of rv trailers or a utility trailers with load C/D/E tires on 3.5k/5k/6k axles but load G 14 ply rated tires that can weight 60-70 lbs per tire. These tires are heavy/very stiff sidewalls.
A 15400 lb trailer can have a 3200-3300 lb hitch weight which leaves around 12000 on the trailers axles = 3000 per tire. Now add a good 15 percent reserve capacity = 3450 lbs per tire. These numbers are a approx vs actual scaled axle loads so numbers will vary.
Now add 10-15 psi for a good reserve pressure to combat inter ply shearing forces.
Its been my experience you will get better long term service (miles and years) with 90-95 psi or even max sidewall pressures than at 80 psi.
Were not talking small TTs or just experience with a couple of rv trailers or a utility trailers with load C/D/E tires on 3.5k/5k/6k axles but load G 14 ply rated tires that can weight 60-70 lbs per tire. These tires are heavy/very stiff sidewalls.
A 15400 lb trailer can have a 3200-3300 lb hitch weight which leaves around 12000 on the trailers axles = 3000 per tire. Now add a good 15 percent reserve capacity = 3450 lbs per tire. These numbers are a approx vs actual scaled axle loads so numbers will vary.
Now add 10-15 psi for a good reserve pressure to combat inter ply shearing forces.
Its been my experience you will get better long term service (miles and years) with 90-95 psi or even max sidewall pressures than at 80 psi.
