SHIMANO PRO Discover Frame Bag - Gray bottom bracket This optional mount kit allows

This optional mount kit allows cyclists to mount and install their compatible Varia device beneath their bicycle saddle on standard alloy seat rails (7mm round)

such as the Tour de France

Cervelo S5 2019-20 (works with M4 and M5 screws)

giving you the best of both worlds

Bluetooth and ANT+

SHIMANO PRO Discover Frame Bag - Gray bottom bracket This optional mount kit allowsDesigned to provide you with a better sports bicycle experience the PRO Discover Frame Bag provides bikepackers with a large storage solution which straps neatly within the front triangle of your bike. It features a 5. 5 litre capacity, spilt into two compartments, and a waterproof construction with protected zippers. The Discover Frame Bag fixes to the frame of your bike via adjustable Velcro straps and also boasts reflective elements to improve your