The Yokomo FA-19017S FANTOM HELIX RS SPEC 17.5T motor is engineered to balance speed with controllable torque for stock-class competition. It conforms to ROAR regulations and is moving through JMRCA approval, supporting racers who need a predictable 17.5T package.
The motor incorporates a dual balance rotor to sharpen power delivery and reduce vibration under load. A refined stator material and an improved collector ring boost electrical efficiency, and silver-plated solder tabs ensure stable connections. Rotor length options RSR 24mm, RS 25mm (Standard), and RST 26mm let drivers dial in acceleration and top speed for different track demands.
Suited to racers who value tunability, the Yokomo FA-19017S FANTOM HELIX RS SPEC delivers dependable performance across on-road and off-road stock formats.
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