73: Tough Series

  • YR Fitness is the top choice for premium gym equipment manufacturing.
  • Lefit and numerous other renowned brands have selected us, and our satisfied clientele spans across the globe.

  • An overwhelming 95% of our clients choose to partner with us after experiencing the superior quality of our commercial gym equipment first-hand.
  • Maintain your competitive gym membership prices with our cost-effective commercial-grade equipment. The structure of our equipment is built to last, thanks to the flange connection and precise manufacturing process.
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Products We Have for You

DESIGNED By ATHLETES,
FOR ATHLETES

At YR Fitness, Design Transcends Aesthetics.

It’s About Functionality.

Simple, But Significant.

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Advancing Fitness Technology

YR Fitness has channeled over $8M into technology development across two decades:

  • Established an expert-driven R&D center, converging fields from exercise physiology to technological innovation.
  • Unwavering focus on delivering uniquely designed, budget-friendly fitness equipment.
  • Engineered with distinctive movement angles and designs, our strength equipment excels in the professional arena.

Visitors consistently marvel at our manufacturing prowess during factory tours

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Factory


Over 95% clients choose to cooperate with YR Fitness, after visiting our factory and trying our commercial gym equipment personally.

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Patents


Our gym equipment meet ISO 20957 standard, with over 200 patents (Utility Model Patents & Appearance Design Patents)

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R&D Invest


For more than 20 years, YR Fitness invested over 8 million USD for technology development.

73 Tough Series

01 Engineered with Purpose. Built to Perform.

“The 73 Series reflects everything I understand about strength equipment.”
By George Yang | Founder and chief designer at YR Fitness

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02 A Head Start in Innovation

The 73 Series was the world’s first line of pin-loaded machines with natural, independent, converging and diverging movements.
Its design was completed in 2006 and officially launched in 2008—six years earlier than Life Fitness’ Insignia series.

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03 Engineered Tubing That Sets Us Apart

We used special elliptical tubing:
– 75×130×3.0 mm for the weight stack column
– 58×101×3.0 mm for the movement area
The frame follows a clean, parabolic flow that still stands out today.
No other brand uses this tubing or shape.
The machines are finished with a large number of aluminum alloy accents and custom-cast aluminum parts, adding both strength and a premium look.

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04 Built from the Ground Up

Designing this series was not easy.
It took our team 1 full month just to figure out the cable routing layout.
We also developed many components from scratch, including:
– Pulleys
– Cams
– Bearings
– Multi-directional handle joints
Why? Because only self-developed parts could meet our strength and performance standards.

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05 Hand-Assembled with Care

Due to the curved design and special frame structure, mass production is difficult.
Most of the 73 Series are hand-assembled, piece by piece.
If you’re looking for professional-quality equipment with real attention to movement and structure, the 73 Tough Series is a solid choice.

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Compare Our Key Series

Tough

73 Series

Heavy-Duty Frame
Pro-Level Movement
High-End Line

Racing

61A Series

Durable
Affordable
Best-Selling

Revival

C4 Series

Modern Look
Upgraded Fusion
More Features

Quick Comparison At A Glance

Feature
73 Tough Series
61A Racing Series
C4 Revival Series
Launch Year
2008
2016
2025
Design Focus
High-end performance and biomechanics
Space-saving, budget-friendly, market-driven
Combines 61A’s simplicity with 73’s advanced features
Frame Tubing
75×130×3.0 mm (main) + 58×101×3.0 mm (functional)
75×118×3.0 mm (main) + 50×120 / 40×80 / 50×100 mm
150×50×3.0 mm (main) + 50×120 / 40×80 / 50×100 mm
Aesthetic Design
Parabolic, bold, aluminum accents
Compact and practical
Stylish, modern, fits younger gym aesthetics
Durability Level
Heavy-duty, custom-engineered components
Very durable, many still running after 20+ years
Same durability level with upgraded styling and adjustability
Movement Types
Independent converging/diverging paths
Standard movement paths
Includes both standard and independent paths (split models)
Adjustability
Basic adjustability
Standard user adjustability
Advanced: rotating handles, adjustable pads, backrests, etc.
Innovation Level
First of its kind globally in 2008
Refined through years of customer feedback
Integrated innovation from both series + unique new machines
Series Size
62 models
62 models
74 models (still expanding)
Target Buyer
High-end gyms, serious training centers
Budget-conscious gyms, franchise chains
Gyms that want both performance and style
Pricing
Premium
Most affordable
Mid-range, with excellent feature-to-price ratio
Production Method
Partially handmade due to complex design
Fully industrialized
Industrial production with some specialty detailing
After-Sales Service
Lifetime support
Lifetime support
Lifetime support