This is the Traxxas Velineon 3500 Brushless Motor. The Velineon 3500 Brushless Motor features a precision balanced rotor, high-speed ball bearings, and ultra high-temperature Neodymium magnets for a great blend of power and long-life. The Velineon 3500 delivers consistent, high-power output, run after run. 

Features: 

• Ultra high-temperature sintered Neodymium magnets provide
• massive torque and linear power
• Optimized for power and efficiency in 1/10th scale vehicles
• Consistent, high-power output, run after run
• Low-maintenance, unique Traxxas design
• Efficient, high-speed ball bearings
• Low maintenance design
• Precision-balanced rotor
• Protective end cap
• 10-Turn, 3500Kv
• Rebuildable
• Hex hardware
• Brilliant blue-anodizing finish
• Silicon steel laminations
• Delivers more power than comparable brushed motors

Note: The motor is not compatible with the older TRA3355X ESC. It must be used with the newer TRA3355R ESC.