1-Inch 25mm Ball Mount Base – CNC Aluminum Square Plate Universal Double Socket Arm Compatible

Expand Your Mount System With a Solid Ball Base.

The 1-inch ball mount standard is the most widely adopted modular mounting interface in motorcycle and vehicle accessories — a single ball diameter that connects to a broad ecosystem of double socket arms, device holders, and adapters. This CNC aluminum base adds a 1-inch (25mm) ball to any flat surface with existing screw holes, letting you position a phone, GPS, action camera, or accessory holder exactly where you need it without buying a complete new mount system.

CNC Aluminum. Square Plate. 1" Ball Standard.

Machined from aluminum alloy for a rigid, corrosion-resistant base that won’t flex under the leverage of a loaded arm. The square plate profile distributes mounting load across multiple screw points for a secure bond to handlebar risers, windscreen brackets, dash panels, and similar flat mount surfaces. The 1-inch (25mm) ball interfaces with any standard 1" double socket arm system.

Key Features

• 1-inch (25mm) ball — standard interface for double socket arm systems
• CNC machined aluminum alloy — rigid, lightweight, corrosion-resistant
• Square plate base — multi-point mounting for secure bond
• Universal compatibility — works with standard 1" double socket arm ecosystems
• Suitable for phone, GPS, action camera, and accessory holders

Specifications

• Material: CNC aluminum alloy
• Ball diameter: 1 inch (25mm)
• Base style: Square plate
• Color: Black
• Compatibility: Standard 1" double socket arm systems

Verify your existing arm system uses the 1-inch (25mm) ball standard before ordering.