These spoilers give your street machine performance worthy of being driven on the track, so you can hit the track with no problem. Thanks to its assembly, you will improve the stability of the motorcycle at high speeds and reduce the vibrations that usually occur when the front wheel is floating. In other words, these spoilers create an anti-sway effect and improve balance during hard front-wheel braking. The closed shape provided by these aileron designs increases the "lapa" effect when changing direction as they direct the air inside. The spoiler's aerodynamic technology adds an "anti-front wheel" effect during strong acceleration, taking advantage of the guidance of the air and the pressure it exerts on the ground. This product does not include screws. You can use screws to fix this product yourself. Fitment:universal For Aprilia Tuono V4 1100 2023 Condition:100% Brand New Simple assembly, Paste method,no need to drill the fairing Colour:A:Black Material:Plastic Package Contents: 1 pair * Motorcycle Downforce Racing Spoiler Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.