Yeah Racing Hackmoto 550-class brushed motor
Coming from Yeah Racing is the new Hackmoto 550-class brushed motor for trail trucks and crawlers. Offering a comparable diameter to a 540-size motor the can of the 550 is somewhat longer for a stronger magnetic field and thus improved torque. High-strength magnets further up the available performance and the motor, that is available in 35T, 21T and 12T specification, comes with Tamiya-standard pre-soldered bullet-type connectors.
Source: Yeah Racing [yeahracing.com]