AB02/AB03 basebar adapters are bike-specific and deliver a consistent mounting interface above the time trial basebar.
Our basebar adapters provide a 125mm extension clamp spacing (centre-centre) for all compatible handlebars.
NEW for 2025, our angled cradles are the foundation for angulation on AB02, while also allowing “bolt on transition” to our 2025 AB03 extensions.
Available in 15 and 20 degree variants, our cradles provide both angulation and a robust connection for the extension clamp.
NEW for 2025 our revised AB02 Extension Clamps are incredibly sleek and offer increased cup mounting options, for both a wider range and finer adjustement increments.
Supporting 22.2 mm round extensions, with wedge clamping for security, ease of setup and ease of removal.
AB02 Dual Stack fit kits are provided with 30mm of spacers, offering adjustment in 10mm increments (Kit A).
Additional spacers and bolts (Kit B) can be ordered, catering for up to 60 mm of spacer height.
Aero Base arm cups are ergonomically designed to provide security from forearm movement, without sacrificing comfort.
With a 9mm thick EVA pad Aero Base cups provide you with the combination of comfort and stability.
AB02 Centre Stack fit kits build off the original spacer components and utilise these for stack height adjustment.
The standard top plate is 125mm wide, with 20mm of forward offset, additional top plate options of +30 and +40mm are available.
Aerobar Two is designed to complement the ecosystem. We offer SRAM AXS grips, Wahoo, and Garmin computer mounts.
For triathlon applications, our expanding line of accessories will soon include BTA options early in 2025.
The AB02 ecosystem facilitates time trial positions that require a more forward arm cup position and greater angulation than most standard cockpits.
AB02 has been designed from the ground up to provide for a modest range of performance-oriented time trial positions.
Building on the success of Aerobar One and the evolution of triathlon positioning, we saw the potential in providing an ecosystem that catered for a greater length, inclination angle and cup stack adjustment.
Overcoming these challenges required a system-wide approach with a completely new design of the extension clamp, mounting accessories (Fit Kits), and optimisation of the extension geometry to achieve the optimal position. With dedicated angulation, and the option of 15-degrees or 20-degrees out of the box, Aerobar Two allows you to achieve the most effective forearm inclination angle for your positional requirements.
Our Aerobar Two extensions are the industry standard 22.2mm diameter, are compatible with modern electronic shifters and can be readily trimmed for the correct length and height. For 2025 we have made it even easier to evolve cockpit setup, for the maximum gains in comfort and performance.
Aerobar Two complements a range of TT and Triathlon bikes, via our fit kit architecture. These components are designed to deliver consistent positional outcomes across all compatible bikes, helping you achieve the most aerodynamically efficient TT position, irrespective of your bike.
Why is this so important? More than 70% of the aerodynamic drag experienced when riding a TT bike comes from airflow over the body of the athlete. Optimisation of your TT position yields the greatest performance gains.
New for 2025 we have bridged the gap between our AB02 and AB03 solutions, making it even easier to upgrade to our premium extension solution, with precision and with the minimum number of changeover parts.
The high-hands time trial position has long been used by athletes seeking greater comfort, but field aero testing (Alphamantis Technologies) shows that a properly supported high-hands position also tests faster as well.
Our test data shows a 3.5% lower average CdA (Variable 1 vs Variable 2 below). This is an equivalent power gain of 14 Watts, worth over 30 seconds for a 40 km time trial completed at 375 Watts. For a full distance IRONMAN completed at 290 Watts, this is an equivalent power gain of 10 Watts, worth over 100 seconds.
A properly supported high-hands position allows the athlete to better execute aero techniques and improves position consistency. The net performance gain from an improved aerodynamic position has a very significant impact on time trial performance, across all disciplines.
