Our very basic exercise bike has no timer, so this is a simple clamp to hold a kitchen timer. The clamp is secured with a VELCRO® brand One-Wrap® thin cable tie.

As designed, the clamp fits around a ~36 mm diameter foam-covered bar. The timer used has a chunky clamp which means the holder needs a lot of clearance to fit through. Consequently, it's a bit loose but won't fall out.

VELCRO® and One-Wrap® are registered trademarks of Velcro BVBA.