Keeps mud off the cargo better, once you get over taking a drill to the fender. Front ones smooth surface also make it quicker to spray off inside of fender. Liking the flexibility up against trees and ruts. Decent product and good fit IMO. Extra wide set shown with oversized tires, 27 x 9”front, 11” rear.
I have the front extra wide fender extensions , I have 27” bighorns , ITP SS212 black with 5+2 offset and they work great , I just came back from Utah riding the Paiute trail and we road in West Yellowstone , Montana , the fenders worked great