GANNA AERO FIN Carbon Seatpost QUICK PRO ER:ONE | from 110g, Biomimetic Shark Fin Aero Design

Currently shipping to Singapore Addresses Only. from 110g | 13mm ultra-slim aero profile Full-carbon saddle clamp | Titanium bolts included | Max load 110kg 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) Setback Information Model Setback (mm) / Weight (g) Cervelo Soloist 10mm / 115g Cervelo S5 3mm / 125g Specialized Tarmac SL7/Allez Sprint 8mm Specialized Tarmac SL8 10mm / 115g Merida Reacto 5mm / 120g Merida Reacto 26 8mm Giant Propel SL, TCR SL 5mm Pinarello Dogma F 5mm / 115g Factor ONE 3mm / 115g Factor Ostro VAM 2.0 9mm Colnago V4Rs 12mm Colnago Y1Rs 10mm Canyon 23-24 Aeroad CFR/SLX 7mm Canyon 25-26 Aeroad CFR/SLX 5mm / 115g Cannondale Supersix Evo 4, Evo 5 8mm / 99g Trek Madone SL/SLR 10mm Scott Foil 6mm / 115g XDS X-Lab AD8/AD9 7mm / 99g Seka Spear 5mm Quick ER:ONE 3mm / 110g Round 27.2mm 10mm / 115g 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 all GANNA Aero Fin Seatposts, see the Compilation Listing 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.