Redcat Racing Starter Gun & BackPlate for VX16 & VX18 Vertex Engines & SH18 SH21 Engines Starter Gun & BackPlate for VX16 & VX18 Vertex Engines & SH18 SH21 engines (Battery and Charger NOT included) Includes 11011h12 backing plate Genuine Redcat Racing Parts Redcat Racing Part Number 70111t