Need new tires
In October of 2020, WE bought our first 5th wheel, a 2015 Heartland cyclone 4150. From what we can tell, it was left on a seasonal site since 2016. I am thinking the tires are original, and although t...
Forum Discussion
When I did the math with the tire weight capacity that was listed on the tire, there was only 540 lbs left if the TH was fully loaded (which I doubt I will ever come close too). Does this seem odd that the TH would have come with these tires from the factory?
Your fully loaded 20000 gvwr trailer will never weigh 20000 lbs. The 20-25 percent hitch weight will go on the trucks rear axle.
20000 gvwr minus 20 percent hitch load = 16000 lbs on the trailers axles.... or 2700 lbs per tire. Now add a 10-15 reserve capacity brings tire capacity up to around 3000 lbs per tire.
IMO your trailer may have 6k axles = 18000 lbs.
Six LT235/85-16 E at 3042 lbs will give 18252 lbs capacity. The Bridgestone R-238 or Michelin XPS Ribs both are a commercial grade all steel ply carcass and work great on 6k axles and your 3000 lbs per tire needs and 80 psi rated wheels. I've used LT E for years on my commercial trailers with 6k axles and zero issues at highway speeds and 50k-60k miles of service. This type of work we actually wear the tire down to the wear bars...sometimes in 6-8 months on the road.
Load G tires at 110 psi will require 110 psi rated wheels work best on 7k axles.
