RCAWD 180 32t Motor 9.8:1 Transmission Gear 11T/40T 37/18T 40/18T for 1/18 TRX4M
RCAWD Alloy 180 32t Motor Transmission gear 9.77：1(12T 36T (36/20T)(36/21T)) for 1/18 TRX4M series
upgrade motor and steel gear 9.77：1(12T 36T (36/20T)(36/21T))，speed up 40%
for TRX4M 1/18 series
All metal , beautiful and durable
