Spirit Fitness CT850 Treadmill
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4.0 HP Brushless AC Motor ⢠450 lb Capacity ⢠0.3 mph Start Speed ⢠Direct Speed & Incline Controls ⢠USB Charging
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The Spirit CT850 is engineered for the demands of commercial fitness environments ā gyms, fitness centers, rehabilitation facilities, and serious home gyms. Its powerful 4.0 HP brushless AC drive motor starts as low as 0.3 mph and delivers consistent torque at every speed, while the heavy-duty frame supports up to 450 lbs and is built to handle continuous multi-user operation. Whether you're running intervals, walking for recovery, or training for endurance, the CT850 delivers the performance and reliability to match your goals every single session.
The CT850's brushless AC motor is the gold standard for commercial treadmills ā more efficient, longer-lasting, and more powerful than traditional DC motors. Starting at just 0.3 mph, it delivers smooth, consistent torque across the entire speed range, making it ideal for everything from slow rehabilitation walks to high-intensity sprint intervals.
The top control panel features direct speed and incline buttons for instant, one-touch adjustments ā no scrolling through menus during your workout. This makes interval training seamless and intuitive, letting users focus on their performance rather than the controls. Ergonomically placed hand pulse sensors provide on-demand heart rate monitoring throughout.
At 437 lbs with a 450 lb user weight capacity, the CT850 is built for stability and long-term durability in high-traffic settings. The large, easy-to-read display offers multiple built-in programs for weight loss, endurance, and interval training, while the integrated cooling fan, USB charging port, and ample storage trays keep users comfortable and organized throughout their session.

| Feature | Specification |
|---|---|
| Dimensions | 84" L Ć 57" W Ć 35" H |
| Unit Weight | 437 lbs |
| Weight Capacity | 450 lbs |
| Motor | 4.0 HP brushless AC drive motor |
| Min Speed | 0.3 mph |
| Controls | Direct speed and incline buttons |
| Heart Rate | Ergonomic hand pulse grip sensors |
| Programs | Weight loss, endurance, interval training |
| Connectivity | USB charging port |
| Comfort | Integrated cooling fan, multiple storage trays |
| SKU | 10-6068 |
The CT850 is the standard commercial treadmill with a traditional console display. The CT850ENT upgrades to a 15.6-inch touchscreen with screen mirroring, streaming apps, and cable TV capability. If entertainment features are a priority for your facility or home gym, the ENT model is the upgrade to consider.
Brushless AC motors are more energy-efficient, generate less heat, require less maintenance, and last significantly longer than traditional DC motors. They also deliver more consistent torque across the full speed range, which is especially important for commercial treadmills that run for many hours per day.
Yes ā the CT850's 0.3 mph minimum speed makes it ideal for slow-speed rehabilitation walking and gait training. Its heavy-duty frame and stable construction also make it a safe choice for users who need extra support during recovery.
30-day satisfaction guarantee. If you're not completely satisfied, we'll arrange pickup and provide a full refund (return shipping fees apply).
Yes! Flexible financing options available at checkout. Pay as low as $139/month with approved credit.
Download Product Brochure (PDF) ā Features and specifications overview
Download Owner's Manual (PDF) ā Setup, operation, and maintenance guide
Join gyms and fitness enthusiasts who trust the Spirit CT850 for reliable, powerful, commercial-grade treadmill performance
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