How to Choose a Universal Double Ball Mount for Your Setup
By RAM Mounts Google Search | Published: 2026-10-30
Category: Buying Guides
Learn how to pick the right universal double ball mount for your vehicle or pedestal setup, with clear decision rules and trade-offs.
Quick answer
Choose a universal double ball mount by matching the base style (round plate or NPT thread) to your mounting surface and deciding if you need a quick-release adapter for frequent device swaps.
Round Plate vs NPT Thread Base
The base style determines where the mount can attach. A round plate base works on flat surfaces like desks, dashboards, or flat vehicle panels. An NPT thread base screws into standard 1/2" NPT pipe threads, making it ideal for pedestals, railings, or custom pipe setups.
Trade-off: The round plate offers more surface area for adhesive or bolt-down mounting, while the NPT base gives you a secure threaded connection but requires a compatible pipe or pedestal.
Quick Release vs Fixed Arm
Some double ball mounts include a quick-release adapter, letting you detach the device without unscrewing anything. This is convenient if you move the mount between vehicles or need to remove the device frequently.
Trade-off: Quick-release adapters add a small amount of height and cost, and the mechanism may have a slight wobble under heavy loads. Fixed arms are simpler and more rigid.
Decision rules for choosing a universal double ball mount
- Mounting surface: If you have a flat surface (desk, dash, panel), choose a round plate base. If you have a threaded pipe or pedestal, choose an NPT thread base.
- Device removal frequency: If you need to remove the device often (e.g., between vehicles), choose a mount with a quick-release adapter. If the device stays put, a fixed arm is simpler and more rigid.
- Available space: Measure the clearance above your mounting surface. A collapsible double socket arm can be adjusted to fit tighter areas, but note the maximum extended height. Check the total height including any pedestal or adapter before finalizing.
Product facts
- RAM® Universal Double Ball Mount with Round Plate and 1/2" NPT Thread: The RAM-101-218-1U consists of a double socket arm mount with one round base and one base with 1/2" NPT hole for pipe or pedestal. The mount is approximately 7.50" tall at maximum extension and is collapsible. You can attach one end to a flat surface and the other to a threaded pipe, giving you flexibility in tight spaces.
RAM® Universal Double Ball Mount with Round Plate and 1/2" NPT Thread - RAM® EZY-Mount™ Quick Release Adapter with 11mm Bolt Head Adapter Mount: The RAM-B-252-A-326U consists of a 2.25" x 0.875" base with 11mm hole, SHORT double socket arm and EZY-Mount™ quick release adapter kit. The base is often used on motorcycles, attaching to the mirror frame. The quick-release adapter lets you remove the device quickly, and the 11mm hole fits common motorcycle pinch bolts.
RAM® EZY-Mount™ Quick Release Adapter with 11mm Bolt Head Adapter Mount
Who should choose which mount
Best for
- Mounting on a flat surface like a desk or vehicle dash – choose the RAM-101-218-1U with its round plate base.
- Frequent device swaps or motorcycle use – choose the RAM-B-252-A-326U with its quick-release adapter.
Not for
- Permanent installations where a threaded pipe is unavailable – the NPT base needs a compatible pipe or pedestal.
- Heavy-duty industrial loads – consider RAM's heavy-duty series with larger ball sizes.
