Motorcycle Helmet Lock, Motorcycle Helmet Lock 1-1/4 to 1-1/2 4232 Fit For Kuryakyn Cruiser (Plating Color) : Amazon.co.uk: Automotive
Kuryakyn 4248 Motorcycle Accessory: License Plate Helmet Security Lock with Mount, Universal Fit for Motorcycles with Flat Brackets, Black : Amazon.co.uk: Automotive
24HELMETS Universal Helmet Lock in black or chrome | 24Helmets.de