This new electric motor is perfect for installing into M-03 & M-04 chassis to participate in official Tamiya races. It provides more torque than the normal RS-540 type motor, and can sustain it's high performance for long durations. This motor is also compatible with touring car chassis and is a great upgrade for beginner drivers to let them gradually adjust to higher performance motors. May be used with 53581 Racing Motor Brush and 53486 Commutator Cleaning Brush Set. 
 
Features

Number of turns = 28
Usable Voltage = 7.2v
Torque at best efficiency = 564g/cm (7.2v)
RPM at best efficiency = 16,300rpm (7.2v)