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
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
Care & Maintenance
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.
