Perhaps the ARRMA NERO BIG ROCK 6S is the most powerful monster truck ever built, with almost more power than you can control ... almost. The specially designed ARRMA NERO 'Diff Brain' is fitted with three separate, lockable metal differentials and lots of reinforced chassis parts, helping you to truly harnessall the crazy 6S speed and torque.
Mode 1: all differentials unlocked - Racing-Mode
Mode 2: centre differential locked - Wheelie-Mode
Mode 3: centre and rear differentials locked - Drift-Mode
Mode 4: all differentials locked - Crawler-Mode
If you want an RC Extended Cab truck with pounds of scaler realism and mean street presence, then the ARRMA BIG ROCK 6S is for you. Loaded with ARRMA's 6S BLX brushless power system, the BIG ROCK 6S delivers four driving modes, all with powerful, muscle-truck looks.