The XT185 has a short belt, only 50″ which even based on your height would be short in my opinion. Plus Spirit designed that treadmill for walking, not running. The XT285 would be a much better option because is has a 55″ long belt, larger motor, double the parts/electronics warranty, and has the heart rate control. -Castletonia 04/02/2008
The Spirit XT185 has a 7.5” blue backlit LCD screen that conveniently displays 9 pieces of data at a time to keep you informed and motivated. The Cooling fans are nice however this treadmill does not have a lot of upgrades that other spirit models have and other treadmills in this price range for that matter. The 6 programs that it features are very basic. Also have a short belt so if you are a long strider this might be of some concern. It does fold up so if you are looking to save space this is a plus. Overall this machine is a lot of money for not a lot of bells and whistles.