1. Treadmill use causes a lot of wear and tear. Therefore a used treadmill runs the risk of having seen a lot of all this.
2. If somebody is planning to sell away a treadmill, it is likely because they have found some defects in it that causes trouble.
3. You can never clearly ascertain the condition of a treadmill by mere inspection.

There could be a number of other hassles too with a used treadmill.

You may ask if buying a used treadmill is a suitable option or not. The fact remains that nothing can beat the reliability of a first hand treadmill bought after proper inspection from a good store.  If you can make proper judgments before making your purchase, your used cheap treadmill could be almost as good too.

While inspecting the treadmill you must keep the following tips in mind:

1. Make sure you go accompanied with an expert if you are not very familiar with the machine. This can help you make the right decision.
2. Ask the seller how long he/she has been using the machine and why he/she is eager to sell it. Though you cannot really trust much of what the seller really says, asking these questions can surely help.
3. Ask for the original bill to check the date of the purchase, and compare the price with the current price of the machine.
4. Go through customer reviews of the product.
5. Try to find a machine which the guarantee period has not yet expired.

The viability of this cheap treadmill option also depends on how long you aim to use your treadmill, and how well can you maintain the machine. Used treadmills are generally more suitable in small families where there are fewer people who will use it. Thus go for one that best suits your needs. If you can keep these few factors in mind, you can get a used treadmill that will be sure to give you many years of good use.