Since 2009, TuffStuff Fitness has remained the exclusive Youth Fitness Equipment supplier to the prestigious National Foundation of Governors’ Fitness Councils and for the California Governor’s Challenge Programs.

TuffStuff’s KDS Youth Fitness Circuit is uniquely designed and modified to work with users who are typically 4’6” through 6’0” height. KDS weight stack units come standard with Color Coded Safety Stacks, and blended lighter weight stack increments to allow younger and deconditioned youth to work comfortably but also accommodate stronger and bigger youth athletes as well. Also a noise reduction kit using rubber spacers is included standard with all KDS Weight Stack Units minimizing noise issues to nearby classrooms, work areas or other noise sensitive areas. Optional Upgrade Heavier Weight Stack Kits are also available.

TuffStuff’s KDS Circuit is an ideal line for traditional timed circuit training programs, “Pod” or Body Part training, sport specific training and many other applications. Depending on room size and supervision levels, and trainers or coaches preference. KDS units can be set up as single unit alternating stations, pairs, triplets or larger groupings to customize program needs.

Since 1971 TuffStuff Fitness International has focused on one thing, the design and development of premium strength equipment.

Over the last five decades, TuffStuff has manufactured the highest quality strength equipment and set the industry standards against which all other equipment is measured. TuffStuff’s craftsmanship is recognized worldwide, and their products are sold across the United States, Canada, Mexico and in more than thirty other countries.

Today TuffStuff is the only fitness company in the United States with a full-service manufacturing facility, capable of producing every product they sell. Every design and engineering process begins in Chino, California – from concepts to prototypes, testings and design refinements. As a result, TuffStuff has greater flexibility to customize products, faster turn around times, and maintains a higher level of quality control than competitors.

TuffStuff’s light commercial strength equipment is built to the same exacting standards as their full commercial-grade products. With 11-gauge tubular steel, inert-gas MIG welded construction, and certified USA-made cables. Whether you are looking for a complete multi-gym, or you just need a single equipment station that will stand the test of time, with TuffStuff you will receive unmatched product quality and exceptional support.

Additional Information

Weight 42 lbs
Dimensions 44 × 27 × 22 in


10 YEARS: Structural main frames, welds, cams and weight plates.

5 YEARS: Pivot bearings, pulleys, bushings, guide rods and gas shocks.

1 YEAR: Linear bearings and pull-pin components.

6 MONTHS: Upholstery,cables, finish and rubber grips.

ALL OTHER PARTS not mentioned, one year from the date of purchase to the original purchaser.

Light Commercial Use: Light Commercial warranty applies only to facilities like hotels, apartment complexes, personal training studios, fire & police stations, etc. where the equipment would be used by no more than 30 people per day.


Main frame – 2×3” 11-gauge oval tubular steel with a combination of 2×2” round tubing.

All welded construction conforming with all Structural Welding Code-Steel Standards and Specifications.


Eight-step electrostatically applied powder coat finish.

Frame colors: Main frame: Platinum Sparkle Accent: Cathedral Gray


Premium grade naugahyde formulated to resist bacteria, stains, mildew and oil. Meets most flammability test requirements.


High density 2” thick rebond urethane foam glued to 1” industrial plywood backing, trimmed and formed to exact fit.