The Transiro Aeris Short Distance R3 is an innovative triathlon and time-trial cycling saddle engineered to maximize stability and support for explosive power during shorter rides and races. Aeris: Triathlon saddle designed to provide support and stability while in the aerodynamic time-trial position R3: Combination of a ride-compliant, carbon-reinforced nylon shell and a Kium hollow rail with high strength-to-weight ratio Integrated hydration mount: An optional link serves to integrate a water-bottle cage onto the back of the saddle Specifications Clamp StyleStd RailsColorBlackDefined ColorBlackGender/AgeUnisexLength243MaterialSyntheticRail MaterialKiumSaddle Cut OutYesWeight199Width135