How to Fit a Roadster Cupholder Adapter in Your Car

Quick answer

The Roadster Cupholder Adapter installs in seconds without tools. Adjust its expandable base to fit your car's cupholder, then drop in your bottle or mug.

How to install the Roadster Cupholder Adapter

1. 1. Clean your car's cupholder: Wipe out any dirt or sticky residue so the adapter sits flat. A clean surface prevents wobbling. A sticky cupholder can make the adapter feel loose even when it's properly seated.
2. 2. Expand the base to match your cupholder: Turn the adapter upside down. Squeeze the rubber fingers and pull the base outward until it's slightly larger than your cupholder opening. The adapter should press firmly against the inner walls. If the base is too small, the adapter will tilt. If it's too large, it won't insert at all.
3. 3. Insert the adapter and press down: Push the adapter straight into the cupholder until the rubber fingers grip the sides. Twist it slightly to lock it in place. Give it a gentle tug to confirm it's secure. A loose fit usually means you need to expand the base a little more. Remove and adjust before driving.
4. 4. Place your bottle or mug: Drop your bottle into the adapter. For handled mugs, align the handle with the side opening. The adapter should hold the drink upright without excessive sway. If your bottle wobbles, check that the adapter's rubber fingers are gripping the cupholder, not the bottle.

Product facts

• Roadster Standard Cupholder Adapter: Expandable base fits large mugs, bottles, and cups up to 3.6 inches with a side opening for handled mugs. You don't need a different adapter for every drink. The adjustable grip handles standard water bottles and wide travel mugs alike.