The Heng Long Ultimate Gearbox Edition II is the latest set-up from HL, Full metal drive, copper sleeves, ball bearings, high speed carbon brushed motor and full alloy frame.
Plug and play for Heng Long tanks.
HL 59mm = Leopard 2A6, Challenger, M1Abrams,
ML 59mm = T90, King Tiger, Panther, Jagpanther,