Profile Design Sonic Ergo 39a Aerobar - Aluminum 400mm Black ModelNumber=J1615 The regular fit offers a

The regular fit offers a balanced cut with room to accommodate elbow pads

Color Black/Tan Defined Color Black ISO Diameter 622 / Road / 29" ISO Width (mm) 55 Labeled Size 29 x 2

Color Carbon Rings 50/34 Number of Chainrings Double Crank Length (mm) 172

Replacement disc brake calipers for Hayes Dominion hydraulic brake systems

Profile Design Sonic Ergo 39a Aerobar - Aluminum 400mm Black ModelNumber=J1615 The regular fit offers aProfile Design Sonic Ergo 39a Aerobar Aluminum 400mm Black. The Sonic Ergo 39a is designed to present minimal frontal area to create as little aerodynamic drag as possible. The main purpose of an aerobar is of course to get the rider into a fast position despite a fairly minimalist appearance the Sonic Ergo offers a comprehensive fit range for exactly this purpose. The Sonic bracket offers an extensive fit range low weight and easy adjustment along