Handlebar Fitment: Fits motorcycle and bicycle handlebars with a diameter between 22mm and 28mm for secure attachment. Security Function: Provides an anti-theft fixed locking mechanism to secure helmets to the vehicle handlebar. Portability Feature: Designed as a portable accessory that allows for easy transport and use on various rides. Universal Application: Serves as a universal helmet lock suitable for both motorcycles and bicycles within size limits. Installation Scope: Intended for mounting directly onto handlebars to restore standard helmet security functionality without modification., Manufacturer: MetPAtGys