Ive had these for bout a year now and these r some very tough rims! Ive got +2 arms so i barely fit on trails. Which translates to lots of pressure on the front tires... The rims hold up excellent against rocks and sand. Nothin bends the them or squeezes through. The tires r a diff story. i did pop a tire.... but it still did not fall off the bead!!! I have yet to test them on the moto track which is what i prefer, but i epect them to exceed my expectations. Bc they def exceeded them on the extremely rough trails. A must have!