Thank you for viewing. I am selling a Nikko ring lock for sports bikes. Part number: NC172MB-A Main specifications: Key type: Double-sided dimple type, Bolt: Φ8 round bar bolt, Body: Aluminum die-cast, Inner dimensions: 79.5mm (height), 70mm (width), Opening dimensions: 45mm, Mounting method: Frame clamping method: Circle lock that can also be installed on V-brake and caliper brake vehicles. Please check the product contents and condition in the images. * Recycled packaging materials may be used. Also, the shipping method may be changed depending on the situation, so please be aware of this.