What makes the FX Nytro so unique? NEW Dual Shock Pro suspension. NEW 2 x 40mm HPG dual clicker, 16mm rod rear shocks. NEW Fox FLOAT front shock. NEW Genesis 130FI 4-stroke engine. NEW engine braking reduction system. NEW over-the-engine steering design. NEW tall shock tower front suspension. As if all this race-proven technology wasn't cool enough, it is also the lightest in its class.