If you notice, it is not a Heng Long Leopard 2A6 chassis. It is a metal chassis from Torro/Taigen. It is not cheap, but is one of the best RC tank investment I made. The original HL plastic chassis is below. The same Heng Xin gearbox with MaxHaus (390) motor. You need to remove the battery box to accommond the DKLM size speaker.




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