Full protection The SpeedShield GRX 45 is a sturdy, lightweight fender series designed to fit virtually all Giant and Liv bike frames, featuring stable length-adjustable struts and two widths for maximum versatility Key features: Safety release clips detach passively when an object becomes lodged Length-adjustable struts and strut slots for perfect positioning and tire clearance Designed for use on disc brake bikes with thru-axles Specifications: Diameter: F: 600mm / R: 1160mm Weight: F: 128g / R: 250g Color: Black Material: Polycarbonate fender Stainless steel brackets Compatible: 700*32c~700*42c (Tire width: 320mm~420mm) Compatible Giant Bike Model: Avail Adv / Contend AR/ Contend SL