Applicable bicycle models and fit Bike mirrors designed for Cannondale Track, Trail, Trail Women's, Treadwell, and Treadwell Neo models. Fits handlebars with a diameter of 22–32 mm (please measure your handlebar before ). Mount on either side using the included nonslip rubber gaskets and screws. materials and build quality Constructed from quality ABS, tough aluminium tubing, antislip rubber base, and a glass mirror. ABS shell is impact and wearresistant; thickened aluminium tube provides robust, deformationresistant support. Glass mirror offers a broad view; antislip base increases friction for secure mounting. Clear and wide field of vision Convex glass lens delivers an HD, wideangle rear view with no blind spots. Easily monitor vehicles, cyclists, and pedestrians behind you. Glare surface provides a crisp reflection in varying light conditions, enhancing safety during commuting, touring, or mountain biking. 360degree adjustability Fully rotatable mirror head with a bendable aluminium support rod for flexible positioning. Adjust to your height, riding posture, or terrain for an rear view without turning your head. Quick installation and removal in minutes with no special tools required. Practical use scenarios City commuting: keep track of traffic and pedestrians behind you without distraction. Road touring: maintain situational awareness on long rides with a stable, wide rear view. Mountain biking: adapt the angle to varying terrain and lighting for safer descents and climbs. Key attributes at a glance Compatibility: Cannondale Track, Trail, Trail Women's, Treadwell, Treadwell Neo; 22–32 mm handlebar diameter. Side mounting: can be installed on either left or right side with included gaskets and screws. Materials: ABS shell, aluminium tube, antislip base, glass mirror. Vision: convex lens for wide, glare rear view. Adjustment: 360° mirror head; bendable support rod; tool installation.