FANTOM HELIX RS SPEC EDITION FA-18621ST by Yokomo 1/10 stock motor  [FA-18621ST]

Overview: FANTOM HELIX RS motor for regulated classes

The Yokomo FA-18621ST, marketed as the FANTOM HELIX RS SPEC EDITION, includes a titanium shaft rotor and carries JMRCA official certification, making it appropriate where stock-class restrictions apply. The description focuses on compliant materials and certification to reflect stable output under ROAR-style rules.

This 1/10 touring car motor is positioned for competitors and mechanics who require a motor meeting event rules. The titanium shaft rotor is the documented technical element and is relevant when evaluating shaft rigidity and rotational balance during setup.

Typical installation checks apply: confirm pinion-to-spur alignment, ensure motor mount and body cooling clearances are correct for your chassis, and verify ESC and connector compatibility. Because this motor is intended for stock-class racing, aim your tuning choices at driveability within class constraints rather than seeking open-class peak performance.

FA-18621ST is presented as a competition-ready, regulation-compliant motor for 1/10 touring car stock classes, featuring a titanium shaft rotor and official certification suitable for organised events.