Fidlock Vacuum Bar Base Flex. The Vacuum handlebar base flex offers a brilliantly simple solution for anyone who wants to keep their smartphone securely in view while cycling. Thanks to the combination of magnetic force and suction the device stays firmly attached to the handlebars yet can be easily operated released and re-secured with just one hand. The smartphone mount can be installed with just a few simple steps and without the need for tools. This allows the smartphone to be attached to different handlebars in a flexible manner. Therefore the Fidlock Vacuum handlebar base flex is also suitable for attachment to scooters and strollers in addition to bicycles.