Sonic/Ergo/39a Aerobar Extension

The Sonic/Ergo/39a aerobar extension from Profile Design is based on the FLYT fitting system with its numerous combination and adjustment options and offers you a worthwhile upgrade to the previous model with its optimised 39a extensions.  Low weight, easy customisation and outstanding aerodynamic properties are still the top highlights of these aerobars.

The extensions have been further developed and now have a handle angle of 39° throughout, allowing a more bent or more upright position depending on the handle position. In addition, the aerobars have an aerodynamically favourable Kammtail tube profile in the area of the rise to the grip surfaces. The end caps of the aerobars also benefit from a small but subtle design change. These now have an ergonomic shape that serves as a finger rest, giving you a better grip.

The 39a extensions are combined with the Sonic brackets and Ergo armrests for optimum adjustment to your preferred sitting position and comfortable support for your forearms. Both components have mounting holes that give you plenty of room to manoeuvre when adjusting your position.

This makes the Profile Sonic Sonic/Ergo/39a aerobar an elementary component on the fast chase for your best time at the next time trial.

Details:
Lightweight and versatile aluminium aerobar extension
With numerous adjustment options for the preferred posture
Further developed extensions with 39° grip angle
Aerodynamic Kammtail profile in the Rise
End caps with ergonomic shape for improved grip
Slim sonic brackets with neutral offset (also suitable for carbon extensions)
Adjustable ergo armrests provide comfortable forearm support
Suitable for mechanical and electrical shifting systems (internal cable routing possible)
Compatible with brackets, extensions, and arm rests from the FLYT systems

Technical details:
Material: Aluminium 6061 T6 (brackets, extensions); glass fibre compound, EVA, elastane (arm rest)
Extension length: approx. 400 mm
Outer diameter extensions: Ø 22.2 mm
Inner diameter extensions: Ø 19.2 mm
Extension offset: 7.5 mm
Extension rise: 87 mm
Angle rise: 39°
Armrest offset: -70 mm to -17.5 mm in steps of 7.5 mm
Armrests width: 124 mm to 290 mm in 18.5 mm increments
Armrest stack (height): approx. 60 mm (optional risers under prod. code: 1904721)
Compatible handlebar clamp:  Ø 31.8 mm
Weight: approx. 586 g

In the box:
1 Profile Design Sonic / Ergo / 39a aerobar extension

Profile Design FLYT System
With the FLYT system, Profile Design simplifies the process of fitting an aero bar to a rider to better suit their needs. Based on the three brackets Sonic, Supersonic and Subsonic, the three armrests Ergo, Boom (F40) and Race and the three extensions 39a (previously 35a), 52a (previously 50a) and 26a (previously 45/25a), the system offers 27 possible combinations with over 1000 different fit options. An uncomplicated way to find your own personal fit and riding position. For hobby cyclists and professional bike fitters alike.

Compatible profile components in the ROSE range:
Profile Design Aerobar Bracket Riser Kit (prod. code: 1904721)
Profile UCM Aerobridge (prod. code: 2099910)
Profile Ergo Injected Armrest Kit (prod. code: 2281521)
Profile FC35 hydration system (prod. code: 2254104)
Profile Aero HC hydration system (prod. code: 1906747)
Profile HSF Aerodrink 880 hydration system (prod. code: 2308408)
Profile HSF BTA Bottle Holder for Aero Handlebar Extensions (prod. code: 2295839)