SB Fitness CT850 SprintMaxx Self Generated Cherry Wood Curved Treadmill

Introducing the SB Fitness CT850 SprintMaxx Self Generated Wooden Curved Treadmill for 2026. Special limited time offer.

Whether you're powering through a brisk run or unleashing a full-throttle sprint, the SB Fitness CT850 SprintMaxx is engineered to effortlessly conquer it all. With no artificial speed cap, you can push your limits and run as fast as your legs can carry you.

Crafted with a rock-solid steel frame and premium cherry hardwood shrouds, the CT850 SprintMaxx stands unbreakable against flimsy pinewood competition, and packs on just the right heft for unshakeable stability, letting you train your way.

Advantages of a curved treadmill over a motorized treadmill

• 30% increased calorie burn
• 100% energy efficient. Powered by the body's fat burning furnace
• 30% Increased oxygen consumption
• 16% Increased heart rate
• 2.5% Increased cadence
• Promotes better running form
• More Muscle activation
• Lower risk of injury
• No maximum speed! Most treadmills max out at 12 - 13 MPH
• Adjusts to speed changes immediately. Perfect for high intensity interval training
• No expensive-to-replace electronics or motor that often fail after the warranty period ends.
• Better reliability and longer service life

Specifications

• High speed stainless steel bearings for a smooth, frictionless run
• Cherry wood frame and steel handrails ensure solid reliability
• Perfect for high-intensity interval training and sprinting 
  

Safety Features

• Curvature of the track allows the operator to begin and end workout by using gravity to speed up, slow, and stop track
  
• Raised anti-skid rubber track provides maximum grip and shock absorption to help ease joint stress on impact
• Upward curve located at the rear of treadmill assists in stopping runner
• Handrails assist stability, maintaining balance, and stopping track immediately

Treadmill Features

• Digital display shows distance, speed, time, calories, and total miles of use
• Spacious running track measures 17.5" W x 67" L
• Build-in transport wheels and handle for easy transport
• Adjustable leveling feet for perfect stability
• No electricity required, can be used anywhere!
• Nylon 0.75" Thick track slats for maximum durability, longevity, and non-slip grip
• Maximum user weight 350 lbs. 

Treadmill measurements:

• Running area: 67"L  x 17.5" W
• Treadmill frame: 70" L x 24.5" W 
• Outside of handlebars: 29" W
• Height from floor to top of console: 63"
• Center of curve step up height: 13.5"
• Front of curve height: 21"
• Rear of curve height: 17.5"
• Product weight of 265 lbs. 

Residential and Commercial Warranty

• 10 year frame
• 5 years parts
• 2 years console
• 1 year labor

Shipping

The SB Fitness CT850 SprintMaxx Self Generated Cherry Wood Curved Treadmill ships via freight company, and will be delivered curbside with a scheduled delivery appointment.

Lead Time

In-stock and ships within 1-2 business days