tires and I think I know what you are going to say

Very few if any failure reports on the 16" G Sailun S637 in all the trailering world (Commercial and RV) unlike over 30 members who have reported Maxxis ST8008 failure on this website alone.

We have much better 15" ST class tires out here than Maxxis ST8008 especially when we look in on the many rv and non rv trailering website forums. Doing so will give us a better input on a particular tire's long term reliability and mileage expected.