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Pro Form 520i

by barazowskij

Great treadmill, except if you plan on using it for longer than 5 months. I wouldn't even say I used it excessively (max 25 miles per week) and the belt would not move with a human on it. I tried tightening it and loosening it as well as lubricating it.... I am so mad because I spent good money to have it for winter, and that's the only thing I got, ONE WINTER.

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Jun 28, 2013
Keeps on ticking...
by: Rachel Z

I've had mine for 10 years and it is still going!!

Mar 19, 2013
ProForm 520I
by: Amy

I've used this for years and love it. Lost the red safety key ... anyone have one for sale?

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