Fi'zi:k

Transiro Aeris LD R1 Saddle

What Our Gearhead® Experts Are Saying:

"I’ve used several tri saddles, and the Aeris R1 Adaptive is the first to truly disappear under me during aero sessions. The 3D-printed padding balances softness and support perfectly, and the wide nose gives me a consistent base for long efforts without shifting around. It’s a legit game-changer for Ironman training."

Engineered for the unique demands of long-distance triathlons and time trials, the Fizik Transiro Aeris Long Distance R1 Adaptive blends cutting-edge 3D printing with a race-specific ergonomic design. Its broad, supportive nose and long central channel relieve pressure when you’re riding in the aero bars for extended periods, while Adaptive 3D-printed padding creates multiple functional zones with tuned cushioning, helping reduce peak pressure by up to 60%.

The Digital Light Synthesis process used in the padding gives this saddle a seamless, zonally responsive structure that maintains comfort and stability across varying terrain and intensity levels. A no-slip surface enhances control, and the carbon 7x9 mm rails keep weight low while offering the strength needed for high-output rides. The integrated rail loop also provides a secure transition hook and prevents asymmetric fatigue.

Built with triathletes in mind, the Aeris LD includes compatibility for an optional bottle cage mount and complies with UCI standards. Its aerodynamic rail design provides a broad range of fore-aft adjustment, critical for dialing in ideal race geometry. Whether you're mid-ride in a 140.6 or laying down power in a local TT, this saddle is the definition of aero-optimized comfort.