Ideal for sport and street bikes with clip-on style handlebars, the low-profile Motorcycle Stem Mount keeps your phone rigidly mounted, easily viewable, and instantly accessible. Securely installs in most hollow-center steering stem nuts using an expansion plug. Features an ultra-strong magnetic/mechanical mounting technology (called SlimLink) that grabs and locks your phone so effortlessly, it feels like magic. Attach your phone in portrait or landscape, and remove it instantly with the press of a button-even with riding gloves on. A rigid adjustment arm lets you customize your phone position and viewing angle. Best-in-class vibration isolator prevents phone damage, yet preserves enough stiffness so you can easily interact with your phone while mounted. Weatherproof machined and anodized aluminum construction with stainless steel fasteners.Requires a Peak Design Case or Universal Adapter (sold separately).MORE RIDING, LESS FUTZINGHaving a bulky, cumbersome phone mount on your bike is annoying, distracting, and unsafe. Peak Design Motorcycle Mounts maximize your phone's security and usability with a minimal footprint.BULLETPROOF CONNECTION SYSTEM Magnetic locking technology (called SlimLink) is ultra secure and feels like magic No-look, 1-handed phone attachment and removal Phone is held in place rigidly yet accessible with the press of a button Rugged enough for any ride Easily connect/disconnect phone with gloves on BUILT TO LASTPremium materials and stout construction mean this mount will last for many phones to comeULTIMATE VIBRATION PROTECTION Best-in-class vibration isolator prevents damage to delicate phone components Road-tested for thousands of miles with diverse terrains, bikes, and phone models VERSATILE POSITIONING Mounting arm has 180-degrees of rotation for optimal phone placement and viewing angle Holds phone in portrait or landscape mode PHONE/CASE COMPATIBILITYRequires a Peak Design Case, or Universal Adapter (sold separately)MOTORCYCLE/STEM COMPATIBILITYFits any bike that has (or can be outfitted with) a hollow steering stem nut (inner diameter 13mm-26mm)WHAT'S IN THE BOX 1x Motorcycle Stem Mount 2x Expansion Plug Wedges (install larger wedge for wider stem nuts) 1x Hex Wrench DIMENSIONS Mount Head: 5.3cm x 5.3cm x 1.39cm (2.1" x 2.1" x 0.55") Arm length (tip to tip): 5.65cm (2.2") Arm width: 2cm (0.8") Arm height 1.8cm (0.7") WEIGHT Out-of-the-box: 126.1g (4.44oz) With large explansion plug wedge installed: 133.6g (4.71oz) EXPANSION PLUG FITMENT Small Plug fits stems with 13-20mm ID Large Plug fits stems with 20-26mm ID MATERIALS Machined/anodized aluminum mounting head, arm, base, and expansion plugs Grippy silicone mounting pad with Tinuvin 770 UV-stabilizer PVD coated stainless steel hardware Silicone vibration dampers High-temp neodymium mounting magnets