Apidura Aero Bolt-On Top Tube Module

A strapless, aero-optimised top tube pack that integrates seamlessly on your bike to make you faster. The Aero Bolt-On Top Tube Module is a performance-oriented solution for competitive gravel racers, developed through rigorous Computational Fluid Dynamics (CFD) analysis to smooth airflow behind the stem and improve aerodynamic efficiency. Combining with the Aero Frame Module creates an average 5 watt saving at race speed, validated through wind tunnel testing and race-proven at the highest level, showing a benefit on every bike we’ve tested. View the data For years we’ve helped riders go further, now we’re helping them to go faster. Learn how. – Works with Frame Module to improve aerodynamics – Transfer panel technology reduces drag – One-handed fast entry to top tube module – Ultralight Hexagrid construction Materials & Technology HexagridAn ultralight, high strength nylon grid, laminated with TPU to create a minimalist yet structured material. PFAs and PFC-free. HDPEHigh strength and rigidity reinforcement boarding with good shape recall to avoid deformation. Aero OptimisedActive improvement of the aerodynamic performance of the bike and rider. UltralightMinimal design & lightweight materials for optimal weight-performance. Product Information System Aero Benefit – 5 watt average saving – view data. Weight – Top tube module – 95g Total System Weight (incl. Frame Module) – Aero System (Medium) – 300g – Aero System (Large) – 330g Storage Configuration – Single main compartment Closure System – Fast entry magnetic closure Attachment System – Two M5 hex-headed bolts anchor module to top tube mounts ensuring a gap-free fit – Elastic tensioner contours to the stem and draws Transfer Panels inwards for a flush fit and aerodynamic efficiency Reinforced Structure – Full-length internal carbon base plate ensures a rigid, strap-free fit to the top tube – Internal HDPE thermoplastic frame Waterproofing – Seam Welded: bespoke materials and RF welding create watertight seams – Please note: whilst materials are fully waterproof, the magnetic closure is not Visibility – Reflective graphics Testing Data Wind Tunnel TestedRead the full Aero System White Paper here. Care & Maintenance Spot clean onlyStains can be spot treated with concentrated dishwashing liquid. Abrasion is not recommended Climate Footprint Raw Material Processing and Product Assembly are the most significant contributors to our products climate footprints. Estimated Carbon Emissions For Aero Bolt-On Top Tube Module You can find out more about CO2e estimates and how they are calculated here. Specifications 64 mm bolt spacing and 5 cm of fore-aft adjustment ensures precise alignment between the module and rear of the stem, essential for maximising aerodynamic performance.