Servo-3kg - for Redcat Racing Hurricane XTR. Also compatible with: TSUNAMI EPX, LIGHTNING EPX, TORNADO EPX/EPX PRO, VOLCANO EPX/EPX PRO, VORTEX EPX/EPX PRO, VORTEX SS, TORNADO BB, TORNADO S30, VOLCANO SV, VOLCANO S30, VOLCANO MX, TSUNAMI, VOLCANO STX, SHOCKWAVE, LIGHTNING STR, MONSOON XTR, HURRICANE XTR, LIGHTNING EP DRIF