The Shield S20 is a light, discreet mudguard designed for MTB bikes. Its integrated mounting system makes it easy to install on all types of standard saddle rails. A strong self-adhesive strap reinforces the hold of the Shield S20, protecting your back from splashes. Key Features: Light and Discreet: Very Light Mudguard,Quick Mounting: Quick mounting and removal,Double Lock: Double-locking system under the saddle,Universal: Compatible with all standard-rail saddles,. Tech Specs: Material: Polypropylene,Wheels Dia: 26\" / 27.5\" / 29\",Dimensions: 280 mm x 94 to 115 mm / 11\" x 3,7 to 4.5\",Mounting: Saddle-rail mounting,Max Tyre Width: 2.8\",Weight: 67g.