Forum Discussion

West_Texan's avatar
West_Texan
Explorer
Apr 24, 2014

New Tire Advice?

Hello all. After five years of towing we experienced our first shredded tire, on our second trailer with 2 1/2 years of use. Our trailer is a Sabre 300 BHDS, GVWR of 11,100, with typical scaled weight of about 10,200. It had Triangle ST 225 75 R15s (I know, Chinese..).

I am making the leap to LTs. I am looking at the Goodrich Commercials which appear to be popular, either the 225/75 16 or the 245/75 16. The 225s would be about the same overall size as the current ones (an inch larger of course), rated at 10,700, which is less than the GVWR, but more than enough for the actual weight minus the hitch weight of about 1,300 lbs, which I figure would be about 8,900 lbs on the tires. The 245s would be rated for more than the GVWR, but slightly larger, but should still fit. I'll have to go to our storage site and double check.

The question is, go with the 225s for similar size? And what other advantages, lighter tire I presume? Or go with the 245s, which would be more than enough, or possibly overkill?

Thanks for any tips and advice.
  • I stayed with STs but went up a size and up a load range.

    The original 205R/15 Cs just managed the load at 50 PSI.(max pressure)

    Going to 225R/15 Ds at 50 PSI raised MAX weight by 20% with the tire 15 PSI below MAX.

    You're still weight limited by wheels / axles but the 'overkill' tires will now die of old age instead of exploding.



    Stu
  • If it were me, and the larger tires would fit into the wheel wells without clearance problems, and the tires would fit the wheels, then I would go for the larger size. I would much rather have an excess of capacity than be right on the edge.
    Barney

About RV Tips & Tricks

Looking for advice before your next adventure? Look no further.25,104 PostsLatest Activity: Jan 22, 2025