Fender Kit (Attack, Trail, Blade)Compatible with: Attack, Trail, and Blade These are great to prevent splashing as the mudguard is widened and lengthened to effectively prevent rainwater from splashing, protecting you from getting dirty when riding in the rain or muddy road. There are two knobs on the rear fender, you can also adjust the angle of the fender as needed. The entire adjustment knob can be adjusted manually while the fender adjustment knob must be adjusted with a wrench.