Safety

The Mirrycle mounts in minutes with the wrench that is included. The mirror is a 3" round, convex glass mirror with a wide field of view. The mirror is adjustable to any viewing angle. - Fits inside handlebars with 13.75mm – 22.5mm (.54" to .875") inside diameter

Don't let the small size fool you. The Original Incredibell is little, light and LOUD! Its diminutive dimensions and pivoting ringer let you mount it just about anywhere on your handlebars. A flick of your finger and the Ding! Ding! rings clear for all to hear. - Dome Diameter: 33mm (1.3") - Fits handlebars with 21.7mm – 26mm (.86" – 1.02") outside diameters

The louder version of the Original Incredibell. The Incredibell XL is a little bigger and comes with the same pivoting dinger. - Dome Diameter: 43mm (1.7') - Fits handlebars with 21.7mm – 26mm (.85' – 1.03') outside diameters