RockBox Fitness is a membership-based group fitness concept combining boxing, kickboxing and functional training. Its April 27, 2026 franchise disclosure document offers a more concrete way to evaluate ownership than general promises about fitness-industry growth or business success.
The RockBox studio concept
Item 1 identifies the franchisor as SLLR Enterprises, LLC, a North Carolina company formed on March 16, 2017 that began offering franchises on December 14, 2017. Studios use a prescribed layout, equipment specifications and music as part of the group workout experience.
The FDD describes a typical studio of 1,800–2,200 square feet at an approved location. It also offers qualified applicants a separate development agreement for multiple studios, with an opening schedule and individual franchise agreements. A multi-studio commitment deserves its own staffing and capital plan.
Site selection and opening support
Item 11 describes review of proposed sites, layout specifications, supplier information, staffing guidance and access to an operations manual. The franchisee remains responsible for finding and evaluating a site, securing the lease and addressing permits and local requirements. Franchisor approval does not establish that a location will be profitable.
The disclosed opening support includes one or two representatives for three to five days. The FDD also describes a pre-opening membership requirement; ask how the current requirement applies to your studio and what happens if recruitment takes longer than planned.
Initial training and continuing assistance
The Item 11 training table lists 25 hours online, 39 classroom hours and 12 in-studio hours covering ownership, operations, sales, marketing, trainer instruction and customer-management systems. The franchisor reserves flexibility over remote and in-person delivery.
Attendees pay their travel and living expenses. Clarify the permitted attendees before scheduling, and distinguish initial training from additional services: replacement-manager training and requested in-person support may carry charges. Continuing advice is subject to the scope stated in the FDD, rather than an unlimited support commitment.
Who manages the business?
Item 15 requires personal full-time attention to operations, while permitting day-to-day management to be delegated to an approved Designated Manager who completes initial training. The studio must remain staffed by a trained principal and/or the Designated Manager. Managers must devote full-time efforts to the operation, with other business activity subject to prior written consent.
This makes management coverage a practical part of the ownership decision. Consider who will supervise staff, handle membership service, oversee scheduling and respond when a manager is unavailable.
Evaluate the opportunity before committing
Review the complete applicable FDD and agreement with your advisers, including fees, working capital, territory and any financial performance representations. Talk with current and former operators about their opening experience and daily workload. Enthusiasm for fitness should accompany a realistic operating plan.
Continue with our RockBox Fitness franchise profile and our guide to choosing a franchise, or contact FranchiseTop40 to discuss your research priorities.