Yokomo FA-19021ST FANTOM HELIX RS SPEC Edition(Titanium shaft) 21.5T  [FA-19021ST]

The new series of FANTOM motors is increasing the number of users at circuits all over the country and is gaining acclaim for its overwhelming speed! The HELIX RS SPEC edition complies with the ROAR standard, but is even more powerful with improvements in rotor balance, changes in case design, and a new design. Furthermore, the Japan-only titanium shaft reduces the feeling of stalling in corners, and has achieved good results in stock races in various categories. We are currently applying for approval from JMRCA and plan to use it in races in the 2023 season. Please try it!

Compliant with ROAR standards, applying for JMRCA approval

New features of HELIX RS...
Industry's first dual balance rotor design
The sophisticated stator design It produces incredible power, torque, rpm, and efficiency.
Stator plate metal material
Three types of rotor lengths are available to expand the range of tuning.
Improved collector ring design and silver plating
Solder tabs with silver plating
Improved stator position – improved gap and shimming on sensor board
Side retaining screw position Improved end plate design with
Can design to maximize wire cooling and heat spread
Rotor available. RSR 24mm – RS 25mm (Standard) – RST 26mm