TAMIYA 15307 DINAMO ULTRA DASH MOTOR Super high performance motor equipped with carbon brushes.Superior durability is assured in proper running conditions (improper use may cause excessive motoe heat which may deform chassis). For: Tamiya Mini 4WD Material: Steel Color: Black and Silver Proper Voltage 2.4-3.0V Recommended Torque Load 1.4-1.9,N.m RPM*24000-27500r/Min Current Consumption*4.0-5.0A Values at Recommended Torque Load Always apply grease to gears and shaft receiving area The best performance comes out after running a certain period Do not hinder rotation of the wheels by force Do not touch motor directly after operation as it gets very hot Always remove the batteries after use Use with a metal pinion gear from 8T Metal & Plastic Pinion Gear Set Item:15289 to ensure effective transmission of motor revolution Use of Ni-Cd Batteries is reccommended for better performance