Fantom Helix RS 21.5 Turn Upgraded FULL MONTY Dyno Tuned Brushless Motor


In stock

SKU: Helix 21.5 Categories: ,


“Full Monty” is British slang for “the works”.  Its what I do to most all motors I tune. In other words, this motor has all options on it available to me. By using aluminum end bell screws, I am eliminating magnetic drag and interference that is caused by normal magnetic metals. Then I take it a step further and install ceramic bearings lubricated with SHAG Oil for even less drag. All these upgrades help unleash each motor’s true potential. The result is a motor that operates more freely and has improved efficiency. Also saves about 2g of weight. This is for a racer wanting the best possible edge.

This motor is professionally built and tuned to Rotor Ron’s strict parameters. What does that mean you ask? It includes the rotor properly shimmed, complete evaluation of stator poles, rotor strength & asymmetry and sensor board deviation. This motor has an aligned sensor board that is within my personal strict standards. Bottom line, you will get an awesome motor! Includes Rotor Ron Dyno Service and instructions that will get you up to speed, fast! Sensor wire, motor specs and dyno sheet included along with stickers for your vehicle.

GREATNESS IS A TOUGH ACT TO FOLLOW, but we did it with our ALL NEW HELIX RS pro racing motors!  The ICON v2 motors are still great motors, but as a racing company, we never rest trying to perfect the performance of our products.  Today is a great day for us as we introduce the best motor we have ever designed in our 40+ year history!

The new HELIX RS is an even more refined version of our 5-Time ROAR National Championship winning, patented stator design (U.S. Patent D823,803), producing incredible torque, RPM, and efficiency!

What’s New with the HELIX RS…

NEW – Industry First Dual-Balanced Rotor Design!
NEW – Refined Stator Design produces incredible RAW POWER, TORQUE, RPM & EFFICIENCY!
NEW – Stator Plate Metallurgy
NEW – Collector Ring Design and Improved Silver Plating
NEW – Solder Tabs with Silver Plating
NEW – Improved Stator Position in Can – Improves sensor board gap and shimming
NEW – Improved Side Retaining Screw Location and End-Plate Design
NEW – Can Design for Maximized Wire Cooling and Heat Dissipation


All R&D Done In The USA
Patented Stator Design (U.S. Patent D823,803)
Low Resistance Stator (ROAR mΩ 21.05)
High Strength and Heat Resistant Magnet Formula
Sensor Board Designed to Maximize Deviation Accuracy & Reliability
Maximum Size Allowed, Pure Copper Wire, for Lowest Resistance Possible
Precision Machined 1-Piece Can Design
Chamfered Stator Webs
Thermal Epoxy
High-Inductance / Low Resistance, Silver Plated Collector Ring & Solder Tabs
Venting & Can Designed to Maximize Heat Dissipation
Premium Grade Kawasaki® Steel Stator Plates
CNC Machined Billet T6 6061 Aluminum End Plate for Precision Bearing Alignment
High RPM Precision Bearings
12.5mm High-Torque Rotor
Meets All BRCA, IFMAR, EFRA Specifications
ROAR APPROVED (July 15, 2022)


Additional information

Weight 0.5 lbs
Dimensions 0.0 × 0.0 × 0.0 in

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