On Monday, November 25, 2019 at 9:48:01 AM UTC-5, wrote:
I shattered a plastic Cobra fender when my ASW 24 was less than a year old. Not impressed. I replaced them with galvanized steel fenders from (then) Northern Hydraulics. Salvaged the mud flaps from the plastic junk and tossed the wheel chocks in the front of the trailer where no one would walk away with them in a parking lot. I've since lost two tires (we've had the tire discussion many times so do what you like) and damaged a fender both times.. I just banged it back out. I do need to replace them now (they're 25 years old and stained/bent) but I'll just get another set of cheap metal fenders. You'll probably have to drill a few holes but no big deal.
Just my opinion. But $300 for a set of plastic fenders that will break the first time you hit debris or blow a tire? Please. I'm willing to baby the glider. The trailer I want to be bulletproof. Poor choice of words. 
Chip Bearden
JB
If I were to have to replace a fender, I'd go with steel for durability. I'm also set up to paint with good primers and paint.
My perspective.
A blown tire has the following likely costs:
Replace tire- about $125 or so.
Possibly replace fender. About $100 of you replace both fenders with metal. Cobra plastic is more.
If you are towing with a motor home(and no monitoring) it is very likely you will destroy the wheel. Ask Chip how hard they are to find.
After you put the spare on you have to really watch because you now have no spare.
I support 5 trailers for my ships. I'm buying tires for one of them every year. I consider the money to be well spent.
FWIW
UH