The Yokomo FA-19137 is presented as a tuning accessory for RC motors, aimed at hobbyists installing modified motors in electric cars. It notes a focus on modified motor turns from 4.5T to 8.5T and supports adjustments for both track and rough-surface driving.
Rather than being a complete motor, this part functions as a compatibility and mounting aid to help technicians and builders refine motor placement, torque feel, and overall drive characteristics. Further details below cover fitment, setup considerations, and the accessory's intended use during tuning sessions.
For builders using MSR, SOR or MOR chassis, FA-19137 helps support modified motor choices in the 4.5T-8.5T band, enabling finer control over power delivery for different course types.
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