The Screen is supplied with extension arms and Double Hinges to provide an increased range of movement and adjustment - giving a total up/down vertical range of upto + or - 110mm, while still providing the same adjustment of the spoiler angle, regardless of the spoiler's height. Professional modified Acrylic clear windshield provides good-looking while adding an excellent degree of wind . Adjustable windshield, fixed on the above of original windshield suitable for nearly any bike with a windscreen. Its hardware is fully adjustable angle for Easy installation without modification Product description: Type: Windscreens / Wind Deflectors Condiction: High Quality 100% Brand New Material: Plastic Color: clear Features: Risen Adjustable Clip , Extension Spoiler nstallation instruction not included Dimensions - before purchasing, please ensure you measure the width of your existing screen to ensure compatibility - or contact us for advice. Big Size: Mounting width required on your bike's original screen between XCTA's hinge posts is 280mm / 11 inches (+/- 10 mm / 0.5 inch, dependent upon your screen's curvature) Width of spoiler/aerofoil: 368 mm (14.49 inches) Overall height of spoiler/aerofoil: 167 mm (6.57 inches) small Size: Mounting width required on your bike's original screen between XCTA's hinge posts is 210mm / 8.27 inches (+/- 10 mm / 0.5 inch, dependent upon your screen's curvature) Width of spoiler/aerofoil: 295 mm (11.61 inches) Overall height of spoiler/aerofoil: 135 mm (5.31 inches) Fitment: Universal Adjustable Screen Windscreen Windshield Spoiler Air Deflector For Aprilia Triumph Scooter etc. Package Contents: 1 PCS X windshield Only the above package content, other products are not included. Note: Light shooting 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.