Gmx7

Revolutionizing Swim Training with GMX7. At GMX7, we’re changing the game for swimmers, triathletes, and coaches by delivering a smarter, more efficient way to build strength, endurance, and speed—without sacrificing technique. Designed by former world champion and record holder David McCagg, the GMX7 system was created to fill a critical gap in swim training. Traditional resistance methods often compromise stroke mechanics, but GMX7 ensures perfect alignment and fluid motion while providing constant, adjustable resistance. Why GMX7? Enhances power & endurance in a fraction of the time—achieve a 2-hour workout in just 30-45 minutes Maintains perfect stroke mechanics for optimal technique Trusted by top swim coaches and over 300 Olympians Whether you’re an elite competitor or looking to take your training to the next level, GMX7 helps you push your limits and maximize your potential. Join the movement. Train smarter. Swim stronger.