The Arrma Limitless 120 RTR brings 120 mph performance to drivers straight out of the box. Building on the success of the V1 and V2, this model combines proven design with new engineering focused on stability and accessibility.
At its heart is a Spektrum Firma 4685 1450 Kv motor paired with a 160 A Smart V2 ESC, a setup factory-tuned for reliable 8S power. Unlike the earlier roller kits, the 120 RTR requires no setup guesswork—just swap in the optional gearing and the system delivers full top-speed potential.
Chassis design returns to the V1’s symmetrical layout, but now features the durability and driveline strength of the V2. Enlarged battery trays support higher-capacity packs, keeping voltage stable at speed. A new limited-slip center differential further refines traction and throttle control, making this model more predictable under load while maintaining high-speed efficiency.
Aerodynamics also see attention. The tunable body and aero package balance downforce and drag, allowing small adjustments for driver preference. Combined with the 8 mm motor shaft and reinforced drivetrain, these updates give the Limitless 120 RTR the composure needed for sustained triple-digit runs.
Overall, the Arrma Limitless 120 RTR captures the best of its predecessors—V1’s balance, V2’s strength, and modern refinements—creating one of the most capable and accessible high-speed RC cars available today. For more detail on the specifications of the Limitless 120 RTR, check out the video below.