Servicing: ND, MN, & SD | 701-795-1421

Fitness Doc Inc. - Maintenance | Grand Forks, ND twitter logo-blue facebook logo-blue

Just because it's used doesn't mean it's not good! Allow Fitness Doc Inc. to save you some money when you browse our used fitness equipment. Why buy it new when you can buy used and save the difference? Our professional employees will help you find the perfect piece of equipment that will compliment your fitness routine nicely.

Used fitness equipment

Our team has a large variety of used fitness equipment for you to enjoy.


5 used machines are available.

If it's not a Tectrix Climbmax, it's a step behind. No other brand of stair climber is smoother, quieter or more reliable than Tectrix. Because each and every stair climber that Tectrix builds features our patented cable-drive mechanism, their patented friction braking system and more 80 stainless steel parts. By replacing greasy, maintenance intensive chains with aircraft quality steel cables it helps make the ClimbMax inherently cleaner. If you’re looking for the smoothest, quietest and most user-friendly stair climber on the market, look no further than the Tectrix ClimbMax. Program times can be set from 5 to 60 minutes, with a max speed up to 200' per minute. Daisy chain up to 10 units on a single 10-amp circuit and/or Smart Link up to 8 machines for group race mode.

Price: $900.00


Tectrix Climbmax


Price: $350.00

Nordic Track CX 938

Save money by buying used today! Call:


Cateye EC-6000


Price: $1000.000

Star Trac Elliptical


2 machines available

Price: $1500.00

Scorpion Commercial Dart Board


It offers an abundance of games, from Cricket to Shanghai and much, much more. It features plenty of buttons for simple navigation, the ability to detect misses, multiple 4-player and / or team based games, and more. Everyone is sure to find a game they like, and for the beginner’s it comes with instructions provided for each game. So whether you're a darts expert or novice, looking for a complex game or a simple "aim for the bulls eye”, the Scorpion is the dartboard for you.

This machine is in top-notch condition and works 100%. The dartboard hardly shows any signs of use. The cabinet is clean and shows only minor marks and scratches (from transportation). All sensors, buttons, etc. work, as they should. 4 brand new sets of darts are included. Coin mechs and all locks / keys are also included.

Price: $1500.00 or best offer

Schwinn Airdyne Evolution Comp


2 machines available

Price: $450.00

Quinton MedTrack R60 Rehabilitation Treadmill


Price: $1500.00


Price: $300.00 - $500.00

Hoist Squat Rack (Smith Machine)

Freemotion T7.3 Treadmill


Price: $1000.00

Stair climber