OneUp Dropper Post V3 - 305mm Length

The OneUp Dropper Post V3 – 305mm Length is the latest evolution of OneUp’s proven dropper technology, delivering smoother action, lower weight, and longer service life. Designed for maximum reliability and simplicity, it provides precise saddle positioning with minimal lever effort, making it ideal for aggressive trail, enduro, or all-mountain riding.

This third-generation post features an all-new low-friction seal, improved bushing system, and reduced actuation force for exceptionally light operation. The 305mm version offers generous travel while maintaining a compact insertion depth, allowing riders to achieve maximum drop even on smaller frames. A tool-free travel adjustment system enables quick customization to suit rider preference and bike geometry.

OneUp Dropper Post V3 – 305mm Length Specs at a Glance

• Travel: 305 mm
• Seatpost Diameter Options: 30.9 mm, 31.6 mm, and 34.9 mm
• Actuation: Cable-operated, compatible with standard dropper levers
• Adjustment: Tool-free travel reduction in 10 mm increments (up to 20 mm total)
• Construction: 7075-T6 aluminum body with precision-machined internals
• Weight: Approximately 445 g (31.6 mm version)
• Finish: Black anodized with laser-etched travel markings
• Serviceability: Fully rebuildable design for long-term use

Design Benefits

1. Smoother performance: New low-friction seals and bushings provide effortless actuation and consistent return speed.
2. Lightweight efficiency: One of the lightest full-length droppers available in its category.
3. Customizable travel: Easy tool-free adjustment lets riders fine-tune drop length without disassembly.
4. Compact design: Short insertion depth fits more frames while maintaining maximum drop.
5. Built to last: Fully serviceable and designed for long-term reliability on demanding terrain.

Final Take

The OneUp Dropper Post V3 – 305mm Length offers class-leading smoothness, adjustability, and reliability in a lightweight, rider-friendly design. Perfect for performance-focused trail riders and racers, it redefines dropper post functionality with refined engineering and long-term dependability.