【Product Description】 This allows you to lock your helmet without opening the seat, as it's secured to the rear shock's upper side and the turn signal stay mounting point. Cannot be used with the right side grip. Requires the use of the original turn signal stay; adjustments with collars may be necessary if the turn signals are directly attached to the frame. ※ From the instruction manual ・Be sure to check the product contents before installation. ・Do not modify this product or use it on vehicles other than those listed as compatible. ・This product has been tested for installation on stock vehicles. Compatibility with other manufacturers' products has not been confirmed. 【Compatible Models】 ・Old CB400F (Air-cooled, 398cc-408cc) Years '75-'77 【Product Condition】 Condition: New, stored item Notes: Unused, stored item. Due to being a stored item, there may be dirt or minor scratches on the packaging. Please understand this based on the images provided. Thank you.