Topeak Tetrafender. Features: The perfect quick-mount fender system that easliy attaches to mountain bikes constructed from any material Uses a hook and loop system to securely attach Features adjustable aluminum struts for a perfect alignment Fork width must be within 115-145mm for front fender and seatstays must be within 92-125mm for rear fender Specs: Fits:26-29" Model:Tetrafender M2 rear fender Color:black Weight:-