Fi'zi:k

Transiro Aeris SD R5 Saddle

What Our Gearhead® Experts Are Saying:

"For short, fast races, I need a saddle that holds me stable in aero and doesn’t cause discomfort, and the Aeris R5 nails it. The forward support is perfect, and the pressure-relief channel actually works. It’s one of the most focused and functional saddles I’ve used for time trials."

Built to serve triathletes and time trialists chasing aerodynamic gains and sustainable output, the Fizik Transiro Aeris Short Distance R5 is a purpose-driven saddle honed through scientific bike-fit analysis and real-world performance testing. With a shape that maximizes stability in aggressive positions, this saddle supports riders through sprints and short-course events where power, posture, and comfort intersect.

Its defining feature is the central pressure-relief cutout that transitions into a deeply channeled nose—offering airflow and comfort without sacrificing structure. The properly dimensioned nose allows riders to anchor forward and push against the saddle without unwanted sliding or pressure. Complemented by Type-1 padding, the thicker front cushioning helps minimize soft tissue discomfort, while the rear’s firmer zone provides precise support for seated climbs or transitions.

Designed for optimal bike fit, the rail setup provides a generous range of fore-aft adjustability, letting riders fine-tune their aero posture. The saddle is also hydration-ready with an optional rear-mounted cage link that minimizes transition-phase interference.