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Ab belts may cause muscle contractions if used properly. But the belt alone cannot produce six-pack abs. The real challenge to ab definition is the layer of fat that lies right under the skin, hiding muscle tone.
The belt is in use every single time you start your engine, and it is used for as long as the engine is running. As you can imagine, that puts a lot of wear and tear on the belt. With that being said most serpentine/drive belts can last for a very long time before they need to be replaced. The lifespan of the belt will depend mostly on the type of material itâs made of. Older style belts generally last about 50,000 miles, while those made from EPDM can last up to 100,000 miles. The best option is to just ensure that your car receives regular maintenance and that the belt is inspected every time.