Deda Elementi Zero1 Alloy Seatpost – 350mm / 20mm Setback - Options

Deda Elementi Lightweight Alloy Performance at an Exceptional Value - Options.

The Deda Zero1 seatpost delivers the clean design, reliable adjustment and proven construction expected from Deda Elementi in a highly accessible package. Built for road and gravel applications, it combines a lightweight alloy shaft with a secure twin-bolt saddle clamp and a practical 20mm setback, making it an excellent choice for performance builds, upgrades and replacement seatposts.

Available in both 27.2 mm and 31.6 mm diameters, the Zero1 offers broad frame compatibility while maintaining the understated Black on Black finish that matches Deda's Zero1 cockpit components.

Twin-Bolt Saddle Adjustment – Secure and Precise

The Zero1 uses Deda's proven twin-bolt adjustment system, the same general clamping concept used on the Zero2 platform.

The two-bolt design allows precise saddle-angle adjustment while providing a secure and stable interface between the saddle rails and seatpost head. For riders who want simple, reliable setup without unnecessary complexity, it is a particularly practical design.

20mm Setback – Balanced Road Positioning

With 20 mm of setback, the Zero1 places the saddle slightly behind the seatpost centerline, providing additional flexibility when dialing in rider position.

This configuration is especially useful for traditional road-bike fit, endurance setups and riders who require additional rearward saddle positioning without relying on excessive rail adjustment.

350mm Length – Versatile Fit

The Zero1 measures 350 mm long, offering enough adjustment range for a wide variety of road and gravel frame geometries.

Its combination of standard length and two available diameters makes it an easy replacement or upgrade for many conventional frames.

Alloy Construction – Strong, Light and Reliable

Deda uses aluminum alloy construction to balance low weight, stiffness and durability.

The 31.6 mm version weighs approximately 295 g, keeping the Zero1 competitive for an alloy seatpost while maintaining the robustness needed for everyday riding, training and long-term use.

Two Diameters for Broad Compatibility

The Zero1 is available in:

• 27.2 × 350 mm
• 31.6 × 350 mm

Both versions use the same 20 mm setback and Black on Black finish.

The 27.2 mm size is widely used on road, endurance and gravel frames where additional seatpost compliance is desirable, while 31.6 mm remains common on frames designed around a larger seat tube interface.

Compatible with Internal Shimano Di2 Battery Installation

The Zero1 is compatible with Deda's dedicated adapter for mounting a Shimano Di2 internal battery inside the seatpost.

This provides a cleaner electronic drivetrain installation while keeping the battery protected and concealed within the frame.

Black on Black – Clean Deda Styling

The BOB — Black on Black — finish gives the Zero1 a subtle appearance that integrates easily with virtually any modern road or gravel build.

It also pairs naturally with Deda's Zero1 stem and handlebar for riders building a coordinated cockpit and finishing kit.

Technical Specifications

• Intended Use: Road / Gravel
• Material: Aluminum alloy
• Length: 350 mm
• Setback: 20 mm
• Available Diameters:
  • 27.2 mm
  • 31.6 mm
• Saddle Clamp: Twin-bolt adjustment
• Weight: 295 g (31.6 mm)
• Finish: BOB – Black on Black
• Di2 Compatibility: Compatible with Deda adapter for internal Shimano Di2 battery

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