The screw-on Top Tube Phone Bag not only provides quick access to power bars and windbreakers but also expands your cockpit with its transparent, waterproof sleeve designed for devices up to 17 x 8 x 1 cm in size. Attaching the bag is a breeze, with three Velcro straps securing it around the top tube and head tube. 

For added flexibility, there are holes in the bottom of the top tube bag, allowing for a screw-on installation. It features an all-around reflective print for enhanced visibility. 

Weight: 150 g
Dimension: 9.5 x 21 x 10.5 cm
Volume: 1 litre