Profile Design Subsonic/Ergo/39a Aerobar 340mm

Subsonic not just another aerobar bracket. It brings our next generation ?t range to a low stack bracket design. This allows the bar to use our riser kits to increase the stack without changing the relationship between the armrest and the grips. The Ergo armrest creates an aerobar that will aid most riders in optimising their position for both speed and comfort.

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 aerodynamics and the ?t range.

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 48 distinct position options achievable just by moving the armrests.

Combine that with the risers and this bar offers 816 possible con?gurations. As a clip on bar it is also possible to adjust the extension width and tilt easily. This is the most adjustable low stack clip-on on the market.

Origin Story
After we released the Supersonic as a premium bracket with market leading ?t options and versatility we wanted to bring the same kind of options to the rest of our range of brackets and thus aerobars.

Where our Supersonic and Sonic brackets have a minimum stack of around 60mm, like most of the popular aerobars – we wanted the Subsonic to offer a substantially lower position. This helps the segment of the market who struggle to get into their ideal position with modern bike frames. And it was vital that we included stack height adjustment without altering the pad to grip relationship – so our riders have the ability to ?ne-tune every aspect of their setup.

The Ergo armrest shares the ?ippable design of the rest of our new generation armrests. By swapping sides or rotating the armrests smaller increments of movement are achieved – making it simple to ?ne tune a riders position or match the position from their previous aerobar or bike.

Who is it for?
This bar is perfect for riders who wish to achieve lower positions than are possible with standard aerobar designs. Unlike other low stack bars it allows ?ne-tuning of the stack height so the rider is not limited to only one armpad height. With the Race armrests ?tted it is tailored towards riders who intend to be low and narrow to punch the smallest possible hole through the wind.

Features

Speci?cations

• Bracket: Subsonic
  
• Armrest: Ergo
  
• Extension Length: 340mm
  
• Clamp Diameter: 31.8mm
  
• Width: 142-272mm

Tech Guide

• Armrest Offset: 70mm to -2.5mm in 7.5mm steps
  
• Armrest Width: 124mm to 290mm in 18.5mm steps*
  
• Armrest Stack: 140mm - 80mm** in 5mm increments.

Bolts

• Bar Clamp: M66Nm (53 inlbf)
  
• Extension Clamp: M65Nm (44 inlbf)
  
• Armrest Bolts: M64.7Nm (42 inlbf)

Weights

• Bracket: 304g
  
• Armrest: 160g/Set
  
• Extensions: 165g
  
• Total: 629g