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Buying a used treadmill

Plenty of barely-used treadmills are for sale. Here's how to get a good one.

Before you go#

• Look up the model's maximum user weight and continuous-duty motor rating (CHP).
• Ask how often it was used and whether it's been moved.
• Measure your space, including about 2 feet behind the deck.
• Bring help: treadmills are heavy.

Test it in person#

• Walk on it for at least five minutes at your usual speed.
• Listen for grinding, squealing or thumping from the motor or rollers.
• Check the belt for fraying, and that it runs centered without slipping when you push off.
• Press on the deck: it shouldn't flex much or creak.
• Make sure the safety key is included and actually stops the belt.
• Try the incline and every button you'd use.

Red flags#

A missing safety key, a belt that slips or drifts, burning smells, error codes, or a seller who won't let you try it running. Walk away from those.

After you buy#

Check the belt tension and lubrication as the manual describes, and keep it on a mat away from walls. See the treadmill care guide.

Treadmill care → Walking pads explained →

Last reviewed October 30, 2026 · Sources · General information, not medical advice.