Quad Lock Motorcycle Mirror Mount The Quad Lock Motorcycle Mirror Mount ensures a secure hold for your phone during your ride, keeping your navigation apps visible to never miss a turn. It is designed to securely mount on standard motorcycle and scooter mirror stems, offering adjustability for optimal visibility using the indexing head. Attaching and detaching your phone is a breeze with the patented dual-stage locking mechanism that requires a simple twist and lock motion. For enhanced stability, you have the option to add the Vibration Dampener to your Quad Lock mount. This optional accessory reduces over 90 of high-frequency vibrations produced by motorcycles, providing additional stability and a smoother riding experience. This revised version features reduced circumference of the base and an improved mounting system for easier, simpler installation. An re-engineered hinge mechanism also makes installation to the handlebar mount a breeze. Compatible with all Quad Lock cases and Universal Adaptor. Features: Patented dual stage locking mechanism Easy attachment/detachment from phone case Glass filled Nylon construction and stainless steel hardware Optional Quad Lock Vibration Dampener provides additional stability (sold separately) Mirror mount fits 16mm stem Includes 3 spacers to fit stem sizes: 10mm, 12mm, 14mm Includes 1 mirror mount and 3 bar spacers Note: Quad Lock Case sold separately.