This is the Novak 14mm "Crawling Tuning" Sintered Rotor. This 14mm Sintered Rotor is designed to alter the feel and experience of driving a Novak crawler motor, and offers a new dimension of tunability. With a larger diameter and improved magnetic material, the rotor provides more torque and stronger braking. It also increases natural drag braking and improves the motorís initial throttle response, providing more control on steep climbs and downhill descents.
The crawling sintered rotor is compatible with Novakís 18.5-turn (#3419) and 21.5-turn (#3420) Pro Crawler Brushless Motors.