GANNA
GANNA AERO FIN Carbon Seatpost | from 99g, Biomimetic Aero Design
GANNA AERO FIN Carbon Seatpost | from 99g, Biomimetic Aero Design
No se pudo cargar la disponibilidad de retiro
Currently shipping to Singapore Addresses Only.
From 99g (300mm)/115g (370mm) | 13mm ultra-slim aero profile
Full-carbon saddle clamp | Titanium bolts included | Max load 110kg
Compatible with 20+ models: Cervélo S5 / Soloist, Specialized SL7/SL8, Merida Reacto, Pinarello Dogma F, Factor, Colnago, Canyon, Trek, Scott, and more
Features
13mm Biomimetic Aero Profile
The 13mm frontal profile is drawn from the cross-section of a shark's dorsal fin. Following Mother Nature's design, it is a shape that cleaves airflow cleanly at the leading edge and guides it to reduce turbulent drag at the rear.
GANNA's design positions this as a meaningful aero gain over conventional round or D-section posts, particularly in crosswind conditions where vortex drag is highest.
This biomimetic design is completed with the GANNA Angle° /Angle° Pro Integrated Handlebars.
Full-Carbon Saddle Clamp
The saddle rail clamp is full carbon, an industry-first according to GANNA.
Beyond the weight saving, the carbon construction enables better load transfer from saddle rails into the post body, and the material's natural damping characteristics contribute to the post's compliance behaviour.
Saddle clamp width is 47mm, compatible with standard round and oval rail saddles.
Bionic Micro-Offset Flex Geometry
A bionic micro-offset shape is built into the post's profile, allowing controlled longitudinal flex.
Precision Laser-Fused Finish
The AERO FIN ships with an exposed naked carbon finish produced via a laser-fused surface process. The weave is the surface, not painted nor decal-ed. Natural weave variation between units is a characteristic of the material, not a manufacturing defect.
Specifications
| Material | Carbon fibre (full construction, including saddle clamp) |
| Frontal Profile | 13mm |
| Available Lengths | 300mm / 370mm |
| Weight (300mm) | from 99g |
| Weight (370mm) | from 115g |
| Saddle Clamp Width | 47mm |
| Min Insert (300mm) | 75mm |
| Max Insert (300mm) | 160mm |
| Min Insert (370mm) | 95mm |
| Max Insert (370mm) | 230mm |
| Max Rider Load | 110kg |
| Finish | Naked carbon fibre, laser-fused surface |
| Max Saddle Clamp Torque | Front 3Nm / Rear 5Nm |
| Max Seatpost Clamp Torque | 5Nm (do not exceed 5.5Nm) |
Compatibility
The AERO FIN is offered in model-specific variants, each matched to the frame's seat tube interface, offset geometry, and clamp requirements. Select your bike model when ordering.
List updated as of May 2026.
Cervélo: S5 / Soloist
Specialized: SL7 / Allez / SL8
Merida: Reacto / Reacto 26
Pinarello: Dogma F
Factor: One / Ostro VAM 2.0
Colnago: V4RS / Y1RS
Canyon: Aeroad CFR/SLX 2023–2024 / Aeroad CFR/SLX 2025–2026
Cannondale: EVO4 / EVO5
Trek: Madone SL/SLR
Scott: Foil
XDS: X-Lab AD8 / AD9
Seka: Spear
Quick: ER One
Universal: 27.2mm round
Installation Notes
Apply carbon grip paste to the inserted section of the seatpost before installation. All bolt interfaces must be coated with anti-seize assembly grease. Ensure full contact between the saddle clamp and seat rails before torquing. For 27.2mm round seatposts, orient the clamp opening forward.
What's Included?
- 1x GANNA AERO FIN Carbon Seatpost
- 2x Full-carbon saddle rail clamp
- 2x Titanium bolts
- 3x Titanium hardware Parts
Links
For the matching integrated handlebar, see the GANNA Angle° / GANNA Angle° Pro
To browse all GANNA products, click here.
To browse all seatposts, click here.
Warranty
GANNA provides a 2-year warranty against non-human damage. Warranty is automatically extended upon member registration and serial number activation after delivery.
If you are a weight weenie and cut the seatpost shorter, you are still covered by warranty! However, you will not be eligible for a refund/exchange.
Seatpost with used marks will not be eligible for refund/exchange.
To claim, submit the damaged part and proof of purchase within the warranty period. Warranty is void for products sourced through unauthorised channels, missing proof of purchase, mechanical destruction, accidental drops, or improper installation.
Product finish: Naked carbon fibre with natural weave variations. These variations are a material characteristic, not a defect.
Shipping Note
Due to the size of this item, the shipping method may be changed to an equivalent option depending on your location.
