HPI Racing - Heavy Duty Final Gear Set, P1x36 Tooth, P1x14 Tooth, for the Nitro 3 18SS Replacement Parts Boat Propeller Installing in vehicle

Installing in vehicle

37 (35mm) Inside diameter:

Unregulated LiPo battery for extreme torque

As R/C enthusiast themselves

HPI Racing - Heavy Duty Final Gear Set, P1x36 Tooth, P1x14 Tooth, for the Nitro 3 18SS Replacement Parts Boat Propeller Installing in vehicleHeavy Duty Final Gear Set for Nitro RS4 3 touring cars. These are standard replacement parts for the high performance Nitro RS4 3 18SS, 18SS+ and Nitro RS4 3 Evo + cars, and can be installed on the standard Nitro RS4 3 for increased drivetrain strength, extended maintenance intervals, and a taller gear ratio for higher top speed. These heavy duty gears are heat treated, making them a great upgrade for Nitro RS4 3 owners who are using powerful engines.