The Topeak Defender RX Rear 27/29in Mudguard is specifically designed for 27.5” and 29” wheeled Mountain Bikes. The DeFender™ RXguards are the perfect choice for lightweight, durable mud protection on those wet and sloppy rides. Quick release allows Topeak DeFenders to be installed and removed in seconds. A highly polished underside helps prevent dirt buildup and aids in cleaning. Fits 27.5” - 29” MTB tyres up to 3” wide.Topeak Defender RX Rear 27/29in Mudguard FeaturesAttachments: QR seatpost attachmentAdjustment: Rear angle adjustableMaterial: Two tone injected high impact resistant plasticSize: 61 x 18 x 10 / 24” x 7.1” x 3.9”Weight: 226 g / ozFits 27.5” - 29” MTB tyres up to 3” wide.