"Couple reports on the Montana forum with the Vietnam made Sailuns, looks like a bad batch, they had about the same date codes . No blowouts ,what I saw was partial tread separation ."
Sounds like the GY 17.5 "H"
"12v98, might have to consider those Endurance next time if those Sailuns continue with issues ,or make sure they are made in China ."
I have been running the Endurance on my Boat Trailer with ZERO issues towing at 70mph all Summer long for 4 years now. Probably have 20k or more and have around 1/8" tread left.