Subsonic / Ergo / 39A Aerobar.

• Subsonic 39a Aerobar
• The Subsonic/Ergo/39a aerobar combines the low stack Subsonic bracket with the arm-hugging Race armrest to offer an industry-leading fit range oriented toward low, narrow positions. The 39a extension provides a comfortable 39-degree angle with an 87mm rise. This is the only low stack clip-on aerobar on the market that maintains the pad-to-grip angle as the bar is stacked up.
• Subsonic is not just another aerobar bracket. It brings our next generation fit range to a low stack bracket design. This allows the bar to use our riser kits to increase stack height without changing the relationship between the armrest and the grips.
• The Ergo armrest is designed to tightly cup the rider???s arms, facilitating a narrow position and increasing control at speed.
• Performance
• The Subsonic/Ergo is designed to achieve a lower stack height than standard aerobars without the added frontal area of a below-the-basebar extension clamping system. This improves both aerodynamics and fit range.
• Fit Data
• Armrest Offset: -85mm to -17.5mm in 7.5mm steps
• Armrest Width: 142mm to 272mm in 18.5mm steps (with extensions at 100mm)
• Armrest Stack: Minimum 40mm. Compatible with existing risers adding up to 70mm of stack in 5mm increments.
• The extension rotation can be easily adjusted using the shaft bolt. There is a 40mm range of extension length adjustment once the extensions have been cut.
• There are 80 distinct position options achievable by moving the armrests alone. When combined with risers, this bar offers 1200 possible configurations. As a clip-on bar, extension width and tilt can also be adjusted easily, making this the most adjustable low stack clip-on on the market.
• Origin Story
• After releasing the Supersonic (J5) as a premium bracket with market-leading fit options and versatility, we wanted to bring the same level of adjustability to the rest of our aerobar range.
• Where the Supersonic and Sonic brackets have a minimum stack of around 60mm, similar to most popular aerobars, the Subsonic was designed to offer a substantially lower position. This helps riders who struggle to achieve their ideal fit on modern bike frames.
• It was vital to include stack height adjustment without altering the pad-to-grip relationship, allowing riders to fine-tune every aspect of their setup.
• The Ergo armrest shares the flippable design of our new generation armrests. By swapping sides or rotating the armrests, smaller increments of movement are achieved, making it easy to fine-tune a rider???s position or replicate a previous setup.
• Who Is It For
• This bar is ideal for riders seeking lower positions than those possible with standard aerobar designs. Unlike other low stack bars, it allows fine-tuning of stack height so riders are not limited to a single armrest height.
• With Race armrests fitted, it is tailored for riders aiming to be low and narrow to punch the smallest possible hole through the wind.
• Tech Specs
• Bracket: Subsonic
• Clamp Diameter: 31.8mm (26.0mm with Shim Kit, sold separately)
• Armrest: Ergo / 10mm Pads
• Extension Length: 340mm
• Width: 142mm to 272mm
• Weight: 590g
• Color: Black
• Tech Guide
• Torque Settings
• Bar Clamp: 6Nm
• Extension Clamp: 5Nm
• Armrest Bolts: 4.7Nm
• Weight Breakdown
• Bracket: 304g
• Armrest: 148g
• Extensions: 186g
• Total: 590g

Product code: PRSSNC3.