About Us


Muscle D Fitness’s ownership and management is comprised of fitness industry veterans with well over 100 years in combined experience. Brian Lewallen, one of the founders, started in the strength business with Muscle Dynamics in 1977 with the heritage of private labeling benches, racks, and machines for Joe Gold of Gold’s Gym, Venice, CA plus the famous Muscle Beach. The company grew to many millions of dollars with a dealer network throughout the USA and internationally. MD was renowned for anatomical correctness of their equipment and the outstanding customer service given to dealers and customers alike.




41 years later, Muscle D Fitness arises to serve Fitness Equipment dealers in the Commercial, vertical, HOA and Military markets with new equipment that offers outstanding quality with very affordable pricing.etc. The industry has many market segments that are dominated by large, multi-national corporations who mainly specialize in cardio equipment with some strength equipment. What’s been lacking is quick access to commercial fitness equipment by customers. Muscle D Fitness maintains multiple warehouses domestically and overseas to stock most of the items shown in our catalogs. Rather than having to wait weeks or even months for orders to be produced, we ship orders within days of receiving the purchase orders. That has not been done to date by any other manufacturer, large or small. With almost 200 superior quality items, NOW both strength and cardio equipment, the long history of MD is at the forefront again!




Watch Muscle D Founder Brian Lewallen assemble the Super Easy to put together Muscle D Dual Line!