Mobile Ball Mount Adapter with Peak SlimLink - Locking, 20mm Ball
Ideal for motorcycles, cars, trucks, ATVs, overlanding vehicles, boats, planes, and wheelchairs, these adapters let you upgrade your 3rd party phone mount with Peak Design's strong, low-profile, easy-to-use SlimLink™ connection system. It works with a variety of modular 3rd party phone mounting systems—specifically ones that utilize either 1" or 20mm diameter ball-and-socket joints. These 3rd party systems enable an almost infinite range of mounting phone configurations. The Peak Design Ball Mount Adapters upgrade your system with brilliantly fast and secure mounting action for your phone. They also feature weatherproof machined and anodized aluminum construction, ideal for the Locking Ball Mount and all of the outdoor adventures you will go on.
Locking mounts are more secure, featuring push-button phone release, and are suited for outdoor use (motorcycles, dirtbikes, ATVs, boats). Locking mounts feature a best-in-class vibration isolator to prevent phone damage.
Requires a 3rd party phone mount that utilizes 1" (like RAM) or 20mm (like Offroam, Tackform, 67 Designs) ball-and-socket connection joints (sold separately). Locking mounts require a Peak Design Case or Universal Adapter (sold separately).
Our Review
Peak Design Mobile Ball Mount Adapter — Locking, 20mm Ball
The gist: The SlimLink adapter for 20mm ball-socket mounts — Offroam, Tackform, and 67 Designs systems — bringing Peak Design’s fast one-hand phone release to the most popular off-road and motorcycle mount standards.
- 20mm ball compatibility: Fits Offroam, Tackform, and 67 Designs ball mounts — the preferred standard for ADV motorcycles, overlanding vehicles, and ATV handlebars.
- SlimLink push-button release: One-hand phone attach and detach in portrait or landscape — fast enough to pull the phone off while stopped without removing gloves.
- Integrated vibration isolator: Silicone dampener protects phone internals from high-frequency off-road vibration — critical for adventure riding where RAM’s 1” balls are less common.
- Weatherproof aluminum: Machined and anodized for rain, mud, and trail dust — built for the environments where 20mm mount systems are most used.
B&H Photo lists this SKU (M-MM-AF-BK-1) as the 20mm locking ball adapter with confirmed vibration isolator and weatherproof anodized aluminum build for outdoor vehicle applications.
Best for: Adventure travelers with Offroam, Tackform, or 67 Designs 20mm mount systems who want SlimLink speed and vibration protection. Skip it if: your mount uses 1” RAM balls (use the 1” variant) or you don’t own a Peak Design case or Universal Adapter. Runs ~$25 — check the current price before buying.
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