CAT EYE - Yamabiko Bike Bell STAY SAFE: Let others know you're coming with this classic CatEye bike bell. BE HEARD: This brass bell rings with a clear, resounding "ding." COMPATIBILITY: The Yamabiko Bell fits handlebars with a 25.4mm diameter (or a 22.2mm diameter with the included lining). DURABLE: The aluminum mounting band is durable and simple to secure. STYLISH: Choose from two classic colors (gold and brass) in a matte shine finish.