fender flares for the 2015+ RZR 900’s feature a design that installs into the factory fender bends. This design provides excellent protection from debris (mud, water, sand, etc), but will also enhance the aggressive look of your 2015-2017 RZR 900! The rear fender flares also have features to enhance strength and visual appeal! This design fits both the 2 seat and 4 seat 2015-2017 Polaris RZR 900 models. However, our product WILL NOT fit the 2013-2021 RZR 900 Trail model (50″ wide) unless you have the “S” style factory fenders (P/N 2879434) installed.