Yokomo FA-19021ST FANTOM HELIX RS SPEC 21.5T Race-Tuned Motor with Titanium Shaft  [FA-19021ST]

Yokomo FANTOM HELIX RS Spec: Tunable Performance for Club and Circuit

The Yokomo FANTOM HELIX RS Spec Motor is aimed at racers who value setup flexibility and dependable outputs. Conforming to ROAR rules, the motor features upgraded rotor balance, a sturdy case profile, and a stator layout intended to maximise usable torque and RPM. It is suitable for drivers who refine setups for varying track conditions.

Why Dual Balance Matters for On-Track Work

The dual balance rotor reduces oscillation and sharp power spikes, producing a more controllable delivery through the rev range. Matched with an efficient stator, the design improves torque consistency and RPM stability. The titanium shaft variant, available in Japan, lowers the chance of stalling in tight sequences.

Custom Rotor Selection and Reliable Electrical Contacts

Select from RSR 24mm, RS 25mm (standard), or RST 26mm rotors to tailor performance to your circuit. The enhanced collector ring and silver-plated solder tabs are intended to keep electrical connections stable during sustained racing.

Overall, the Yokomo FANTOM HELIX RS Spec Motor is a practical, adjustable option for racers seeking a balanced 21.5T motor with options for track-specific tuning.