I have similar marks on mine with the white water spots. Not sure what it's from, but seems to be a common issue now that I've seen this thread. I figured it will get beat to hell off-roading so I didn't think twice about it.
Got mine installed last week. So far I like it. I'll be flat towing my Gladiator behind my RV up the Pacific North West next month on a 3 week road trip. Will see how it holds up.
I just received a locking storage unit from a fellow forum member today. Waiting on lock cylinders. After reading this thread, I'm hoping I can get those locks replaced and keyed correctly without too much effort.
Looking forward to more input from anyone that has successfully conquered this.
Mine came with hardtop for which I got the Sunrider quickly after purchasing it. I had decided I hated the man bun soft top and I wasn't going to get one. Then I came across a new in the box soft top on OfferUp for a great price so I caved and got one. It is real nice to pop that thing back...
I have 37's on my 2021 Gladiator and had them on my 2009 JKUR and 2018 Ram Power Wagon. I think they are great tires. They do great off and on road. I don't really hear them unless I have doors and top off and even then, they barely make any noise. Not sure on the total mileage I can get out...