This is a replacement Tekin 13mm Redline Gen3 "Modified" Standard Rotor.
The rotor is the magnet assembly which rotates inside a brushless motor. Magnets can lose strength over time and should be refreshed with a replacement rotor.
*Rotors can be easily identified while installed by the color displayed on the end of the shaft at the rear carrier bearing.
This product was added to our catalog on January 7, 2016