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: A precision aluminum SlimLink adapter for 20mm ball mounts used by Offroam, Tackform, and 67 Designs — the right adapter for field professionals whose vehicles use 20mm ball systems instead of the RAM 1” standard.
- 20mm ball socket: Snaps into Offroam, Tackform, and 67 Designs arms — no new hardware needed if you’ve already invested in a 20mm mount ecosystem.
- One-hand SlimLink: Push-button release connects or removes the phone in seconds in any orientation — essential for professionals who mount and unmount frequently throughout the day.
- Vibration dampening: Silicone isolator absorbs rough-road vibration to protect phone components — relevant for field workers on unpaved surfaces or off-road vehicles.
- Anodized aluminum: Weatherproof machined construction handles outdoor exposure and varies seasonal conditions without degrading.
B&H Photo confirms this SKU as the 20mm locking ball variant, including the integrated silicone vibration isolator and weatherproof aluminum construction.
Best for: Field professionals and remote workers who use 20mm ball-socket mount systems (Offroam/Tackform/67 Designs) and want SlimLink speed on existing hardware. Skip it if: your vehicle arm uses the 1” RAM standard (choose the 1” adapter) or you lack a Peak Design case. Runs ~$25 — check the current price before buying.
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