SDG I-Fly Torque I-Beam Mono Rail Saddle For Downhill / Race BikeSDG I Fly Torque I Beam Mono Rail Saddle For Downhill Race Bike From Road and Cross Country disciplines to World Cup DH podiums, the Fly is one of the stiffest and most dependable performance tools in the SDG portfolio. The I Fly uses a Nylon Glass Fibre, Solid Beam constructed base, with a Honeycomb core, creating one of the lightest strength to weight saddle connections in the world. All Fly models incorporate an EVA foam, minimalistic design with a