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

Mirrycle's Incredibell Brass Duet makes a traditional ding-dong dual-tone ring with the beautiful resonance of solid brass. Plus, its compact size lets you mount it just about anywhere on your handlebars. - Dome Diameter: 33mm (1.3") - Fits handlebars with 21.7mm – 24mm (.86" – .95") outside diameters

Timber 3.0 is a solid brass bell with a sleek black finish and a crisp, clean sound. If you find yourself using your bell on nearly every ride, then the Bolt-On model is the one for you. The Timber 3.0 Bolt-On is identical to the original model, except it features a tight, durable mount that won't spin, shake or rattle on your bars. Similar to a GPS or Garmin mount, the flexible nylon band tightens to your bars with a 5mm hex bolt. The band itself is 31.8mm diameter, the same as the wider part of your bars near the stem. It also includes a flexible 22.2mm shim for mounting your bell securely near your grips, closer to your hands (you'll want to use this setup for oversize and DH bars). - Installation is easy. There is no need to remove the grips, brakes, etc. Just flex the clamp open and slide onto your bar. - Upgraded version has a slimmer profile on your handlebars, smoother shifting between ring modes, and we've beefed up the strength of the internal clapper cable and the lever handle for longer life.

Thanks to its unique mounting system, Axiom's Fastflash DLX Universal Mirror quickly attaches to your handlebar, brake hood, or fork leg. Its convex mirror provides a wide field of view to help you clearly see approaching traffic and the mirror pivots to provide you with an optimal viewing angle.

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