Signature Fitness SF-S2 “Sprint Demon” Manual Mechanical Treadmill Review

Signature Fitness SF-S2 “Sprint Demon” Manual Treadmill

signature fitness sf-s2 treadmill

Signature Fitness SF-S2 “Sprint Demon” is a unisex adult / manual / motorless / curved sprint treadmill with the adjustable resistance levels. December 27, 2021 is the date it was first available at and is currently listed in the top 130 best selling treadmills.

Black Sprint Demon SF-S2 weighs 60 pounds and measures 66.5L x 27.5W x 57.7H inches and can carry a total of 300 pounds of user weight on its robust alloy steel frame. You can do your power walking, light walking, sprints, circuit training, short distances and HIIT- High Intensity Interval Training. This mechanical treadmill can actually help you burn about 30% more calories than an electric treadmill. You can increase your workout intensity easily and jog and run at the speeds of up to 25mph. 

With the flexible and very thin slats that offer cloud absorption, the Sprint Demon is very lightweight and doesn’t put much burden on your joints, while activating muscles more and you can have a very intense workout. You have the 7 resistance levels of high resistance for running and power walking, medium resistance for walking and low resistance for sprinting. And you can hold the handrails on the sides (imitating a sled push) when walking or jogging and you have several hand grip positions that you can change during your workout sessions. 

Sprint Demon is lightweight and comes with the mobility wheels at the front to be relocated easily and conveniently within your house. There is a small LCD-backlit digital monitor that shows the current speed (miles per hour), distance traveled (miles), calories burned and pulse rate. The display on this treadmill can no be synched with a fitness app. You also have the large devicesignature fitness sf-s2 treadmill dimensions holder for your tablet or smartphone if you want to watch training or other videos. The ultra thin slats on this manual treadmill offer you a natural running feel, a bit like being on a pro track.

It works quietly at a noise level a bit less than a regular treadmill, that goes up slightly more when you run faster. You can watch videos or listen to music while exercising on it and people in your house or neighbors will not get disturbed either. If you have low ceilings in the room you’ll put this treadmill, please note that you will not be running at the front (the highest part) but more in the middle which is less than a feet high off the floor. It is not a foldable treadmill and can not be stored in a vertical position for saving space purposes. The warranty offered is one year by the manufacturer and you can contact the seller / customer service via your product page on

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