One tester said that a decline feature simulates the experience of running across bridges. Decline: Some treadmills can also decline, which adds another type of terrain to your training.Incline: A good treadmill inclines at gradients from just short of flat to pretty steep, which mimics the stress of running on hilly terrain and allows you to do interval work.

Speed: We tested treadmills that went up to 12 mph (a five-minute mile), the maximum speed on many treadmills, which may be helpful for those engaging in serious track and interval-based workouts but isn’t necessary for most runners.

Belt length: All but one of the treadmills we tested had an advertised belt length of 60 inches.

Not available (company could not provide information) Lifetime frame and motor, three years parts, one year labor Two-month JRNY membership included ($20 per month or $149 per year regularly)ģ0-day free trial family membership to iFit included ($39 per month or $396 per year regularly)ġ0 years frame, two years parts, one year laborġ5 years frame and motor, five years parts, one year electronics, two years labor 30-day free trial family membership to iFit included ($39 per month or $396 per year regularly)

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