So look what i found on ebay !!!!!

Quite a few people use them. I think they would last. A arms would be my first choice since it may be lighter and less parts. They are cheaper though. Also you can do the front wheel flip for FREE.
 
really wow i would think they wouldn't hold up to trail riding and jumping that good, i mean like driving around the yard i could understand but racing in the woods idk i mean like if they hold up ill get them rite now lol
 
You need to extend the brake lines I believe. Flipping wheels will add about 3 inches with no need to extend lines even though I think 3 isnt enough.
 
Quite a few people use them. I think they would last. A arms would be my first choice since it may be lighter and less parts. They are cheaper though. Also you can do the front wheel flip for FREE.

You can only flip the front wheels if you have drum brakes, the valve stems hit the calipers on the newer disc models. I just purchased some Douglas 2+4 front wheels.
 
they hold up just fine. i dont see how you are going to break 1/4" thick steel. i have them and i weigh more than most. i haven riden trails, rock pits, and a track with my kit and it holds up just fine.
 
really wow i would think they wouldn't hold up to trail riding and jumping that good, i mean like driving around the yard i could understand but racing in the woods idk i mean like if they hold up ill get them rite now lol

They're about 4 times stronger than the frame you're bolting them to!, they weigh a TON!