Flex Fitness Center
A serious-strength gym in the heart of Argyle, WI — welcoming everyone from first-timers to seasoned lifters.
Why Flex
Built For People Who Are Serious About Training
24/7 Access
Members train on their schedule — open around the clock, every day.
25+ Machines
A full floor of quality strength and cardio equipment, room to actually move.
Family Friendly
A safe, welcoming space for the whole household. Family plans available.
Meet The Crew
Owned & Run By Lifters
Brent & Keith Ritschard built Flex around a real passion for strength training — and a commitment to a safe, family-friendly place to chase it.
Become A Member
Find The Plan That Fits
Single, couple, family, student, 60+, and veteran/first-responder plans — billed monthly, quarterly, or yearly.