The mounting set for the Ultimate 6 handlebar bag models Classic, Plus and Pro spoils the day for thieves. You can quickly and easily mount the bracket on handlebars with a diameter of up to 31.8 millimetres and attach your handlebar bag with just one click. The integrated locking system protects against unwanted removal of the pannier and locks the lid of all compatible Ortlieb products.Note: Not suitable for carbon handlebars!