Quote:
Originally Posted by gascott
Specification Nameplate states 235/85R16E. I have the original 2005 Keystone Everest brochure and all Everest Models came with LT235/85R16E tires. The axles are 6000 lb axles. My current tires are Road Rider ST-ST235/85R16 Load Range E, Max single load 3640 lbs., manufactured in 2015. Should I replace with LT or ST tires? Are ST tires better?
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When Keystone was using LT235/85R16 tires on 6000# axles the G614 had not yet come on the market. The standard maximum load capacity for your OE tires is 3042# at 80 PSI, leaving very little load capacity in reserve.
Uniroyal and Mission LT tires were commonly used by Keystone. Their failure rate was mimicked by the earlier ST235/80R16 LRD tires used on 6000# axles.
In today’s market there are a few LT235/85R16 LRG tires available. They are the best choice but will require 110 PSI wheels.
We can all speculate a manufacturer's decision for OE tire fitments. However, it's their decision and they saw them as appropriate at the time the vehicles were manufactured.