Profile Design Sonic Ergo 52a Aerobar millennium An integrated chain hook keeps

An integrated chain hook keeps chain from separating while removing or installing master links

SHIMANO's new FC-RX810-1 crank balances weight and efficiency for mixed-terrain riding

Front Derailleur- Shimano Ultegra Di2 FD-R8150

The valve works with a simple bite and sip and then seals itself to avoid drips

Reflectors on the end caps

Profile Design Sonic Ergo 52a Aerobar millennium An integrated chain hook keepsThe 52a extensions have a 52 for the grip. The rider can choose whether to hold high for the shrugged position or low for a more open, head up position The Sonic Ergo 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