BG Aerosonic 10m Coil Ultegra Di2 Features:• Zippered Main compartment opens

Features:• Zippered Main compartment opens towards rider

520-percent gear range giving riders more ability to spin and recover on the burliest climbs

Handcrafted Since 1866

Zipper closure

And we’ve been innovating ever since

BG Aerosonic 10m Coil Ultegra Di2 Features:• Zippered Main compartment opensShred the air with an exhilarating and powerful sound with the world's thinnest string. For players seeking high repulsion and a hard hitting sound. SPECS More Information Color(s) White Gauge 0. 61 mm Length 10 m (33 ft) 200 m (656 ft) Core High Intensity Nylon Multifilament Outer High Polymer Braided Nylon Fiber Made In Japan Item Code BGAS