Previous Next DescriptionPhotosThe Resistance Gym is a fitness center service based in Concord, California serving Contra Costa County. Contact us for more details. The Resistance Gym 3442 Clayton Rd Concord, CA (925) 338-1731 Local Gym Guide Map Loading... No Records Found Sorry, no records were found. Please adjust your search criteria and try again. Maps failed to load Sorry, unable to load the Maps API. Next