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Spirit CT850 Treadmill Review

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How long will the Spirit CT850 last?

The Spirit CT850 is a commercial grade piece of equipment that is designed for both home and residential use. Residential users have a lifetime warranty on not only the frame, but the motor and deck, and with a 10-year parts warranty you can tell Spirit believes their treadmill will last. With proper care and maintenance, we believe a serious to heavy runner could get many years of use from this well-built machine. The deck is also dual sided and can be flipped to extend the life of the treadmill.

Brief Overview

The Spirit CT850 treadmill is a great choice for all users, with its intuitive and easy-to use console. The large display screen makes it simple to see what your workout will look like before you start and offers an integrated fan cooling system to help keep you comfortable while you work your way through intense workouts or long-distance runs. The CT850 is a powerful, reliable machine that will help you achieve your fitness goals. It features an advanced 4 HP AC motor with smooth and quiet operation for any environment - home or commercial and has a 450 lb. weight capacity – appealing to users of all sizes.

Overall Quality

The CT850 from Spirit is a commercial level treadmill ideal for running enthusiasts or personal trainers used to professional equipment. With 22 x 60 inches of running surface, the CT850 treadmill accommodates runners of all sizes. Users can select speeds of up to 12 mph and inclines of up to 15%. The white LED console is easy to read and understand, and multiple windows allow for easy access of workout information. Both speed and incline can be controlled by direct buttons, and the heart rate monitor located in the ergonomically positioned hand grips helps clients stay within their optimal training zone. Dual-drive motor cooling fans protect the treadmill motor and console from overheating and increase its lifespan. The maintenance free deck system makes for a long-lasting treadmill that's easy to use and comes equipped with USB ports that charge your device while you pit yourself against your past workouts. If you decide to assemble this 390 lb. heavy piece of equipment yourself, please have a few friends handy to balance the weight load and pay proper attention to not crinkle the wires in the console.

Things we like

  • 450 lb weight capacity
  • 22”x60” running surface
  • 4.0 HP AC motor
  • 3” roller

Things we dislike

  • X
    HR strap not included
  • X
    12 preset programs


Console 4 White LED windows including Program Profile, 18 character message window, Speed window, Incline window
Console Feedback Speed, Incline, Distance, Pace, Calories, METS, Pulse, Watts, Time Elapsed, Time Remaining
Programs Manual, Hill, Fat burn, Cardio, Interval, 2 Heart Rate, Custom, HIIT, 5K, 10K, Fitness Tests (Gerkin, Army, Navy, AirForce, Marines corps, Coast Guard, PEB)
Heart Rate Contact & Telemetric, (Heart Rate Strap Not Included)
Direct Access Buttons Direct Speed, Direct Incline
Speed 0.3 to 12 mph (0.8 to 20 kph), 0.1 mph Increments, 0.3 mph Start Speed Available in Maintenance Mode
Bluetooth Bluetooth (For Chest Straps and 3rd Party Apps)
Incline 0 to 15 (0.5 Increments)
Drive Motor 4.0 HP AC Drive with Grade H Insulation
Handlebar Controls Yes (Start, Stop, Speed +, Speed -, Incline +, Incline -)
Power AC 120V / 20A, AC 230V / 15A
Deck 1" Phenolic, Double-Sided, Wax-Coated
Belt 128"L x 22"W - Commercial 2 ply, Pre-Lubed, 4,000hrs
Rollers 3.0"/3.0" (Crowned)
Cushioning 6 Cushioned Elastomers
Frame Heavy-Gauge High-Strength Steel w/ Durable Powder-Coat Paint, Aluminum Console Masts
Dimensions 85"L x 35.8"W x 60.6"H
Weight 390 lb
Maximum User Weight 450 lb


Commercial Warranty Frame: Lifetime Motor: 5 Years Deck: 5 Years Parts: 5 Years Labor: 2 Years


We invite you to see our other treadmill reviews to help you narrow your search for your next fitness machine.


While the Spirit CT850 is listed as a commercial model, it is priced more like a residential one and offers a well-built, easy to use model with an amazing residential warranty. We also like the idea behind the flip deck as anything that helps extend a treadmill’s life is worth it in our book. The CT850 is designed for the serious user and despite its lower technological profile, it still offers challenging workouts.

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