Features 1. Made of quality aluminum alloy, offering high strength, durability, and rust resistance for safe use. 2. Designed to original specifications with a sleek style that does not affect the motorcycle's overall appearance. 3. Available in multiple colors to suit individual preferences. 4. Provides convenient helmet storage and helps prevent theft. 5. Practical accessory compatible with Yamaha YZF R1M/R1S/R6 models. Specification Condition: Item Type: Helmet Lock Material: Aluminum Alloy Composition: Bottom mounting bracket (black part) + lock body (colorful part) Bottom Mounting Bracket Size: Approx. 105 x 75mm / 4.1 x 3in Screw Hole Diameter: Approx. 9mm / 0.4in Center Distance of Two Screw Holes: Approx. 60mm / 2.4in Horizontal Helmet Lock Size: Approx. 62 x 22 x 40mm / 2.4 x 0.9 x 1.6in Lock Pillar Diameter: Approx. 6mm / 0.2in (thickened, silver part) Fitment: Compatible with Yamaha YZF R1M 20152018 Compatible with Yamaha YZF R1S 20152018 Compatible with Yamaha YZF R6 20172019 Package List 1 x Helmet Lock 2 x Key 2 x Black Gasket