Item No PN-138804 1/8 BRUSHLESS MOTOR V10 SERIES For On Road and Off Road 6.5T 1/8 Brushless Motor - V10 Series New design for enganced power and higher performance Lighter weight to improve balance on all vehicles Improved torque design for higher efficiency V10 Series Brushless Motor with 5mm Shaft 540L Standard size motor 3 optional timing advance positions (See below chart)