Lower heart rate and lactic acid production with RS4X, riding at the same speed,
• UNIVERSITY OF VALLADOLID (Spain) "KELME cyclists" Department of Physiology School of Phisiotherapy
  
  Q-Rings Provide 3% Increase in Power,
• Q-Rings Test Results, University of Valladolid
  
  Summary of Q-Rings Study,
• Summary of Preliminary Report on the Performance Enhancements provided by ROTOR Q-Rings
  
  Preservation of knee health using RS4X,
• UNIVERSITY OF ZARAGOZA (Spain) Department of Physiotherapy Investigations
  
  
• Preliminary study showing increases in wattage with RS4X, UNIVERSITY OF FERRARA (Italy) Sports Center of Biomedical Study
  
  
• Metabolic improvements and lowered lactic acid production using RS4X, UNIVERSITY OF VALLADOLID (Spain) Department of Physiology School of Phisiotherapy
  
  
• Increase in obtained speed with the same heart rate using RS4X, SENKIROL Medicine Sports
  
  
• RS4X needed a very short adaptation time, improved the pedal stroke efficiency by over 10%, Case Study by Fact Canada

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