Fizik Terra Aidon X5 Saddle

The Fizik Terra Aidon X5 Saddle is designed for off-road, e-MTB, and full-suspension mountain bike riders seeking improved control, stability, and comfort. With its short-nose profile, ergonomic cut-out, and ride-compliant shell, this saddle helps maintain a planted ride feel while reducing pressure in sensitive zones.

Available in 145 mm and 160 mm widths, the Terra Aidon X5 features a fiber-glass reinforced nylon shell with WingFlex side panels for flexibility, and an S-Alloy Mobius rail system for strength and responsiveness. Type-2 padding adds thickness where it counts—around the sit bones and sides—to support seated climbing and absorb trail chatter. A rubber flap at the bottom of the cut-out helps guard against mud and debris.

Specs at a Glance

• Intended Use: Full-suspension e-MTB / mountain bike trail & enduro riding
• Shell Material: Fiber-glass reinforced nylon with WingFlex edges
• Rails: S-Alloy Mobius (closed-loop 7×7 mm rail design)
• Padding: Type-2 foam, thicker around sit-bones and sides
• Cut-Out: Center ergonomic relief channel with rubber mud flap
• Widths Available: 145 mm & 160 mm
• Length: 255 mm
• Weight: ~ 262 g (145 mm), ~ 272 g (160 mm)
• Height at 75 mm point: 51 mm

Design Benefits

1. Control on Technical Terrain: Shorter nose and solid rear “kick-tail” enhance rider control especially on steep climbs or rough terrain.
2. Pressure Relief & Comfort: Cut-out, thicker foam, and flexing shell sides reduce discomfort during long seated sections.
3. Durable & Mud-Smart: Mud flap and robust materials help keep debris away and the saddle performing over time.
4. Optimized Fit Options: Two width sizes allow better match to sit-bone spacing and riding style.

Final Take

The Fizik Terra Aidon X5 Saddle is a premium choice for riders who spend long hours in the saddle on rough terrain, especially when using e-mountain bikes. It offers a refined crossover of comfort, control, and durability—making it ideal for tackling challenging climbs, technical trails, and long descents without compromising rider support.