Yokomo RPM-M4215A Precision M4 Brushless Motor 21.5T  [RPM-M4215A]

Yokomo RPM-M4215A Racing Performer M4 Bushless motor (21.5T)
Price:
NZD$154.34
Brand:
Yokomo
Model:
RPM-M4215A
GTIN:
suppressing hea
Condition:
Brand New
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Purpose-Built Race Motor for Consistent Laps

The Yokomo RPM-M4215A delivers calibrated power delivery aimed at competitive drivers who prioritise steadiness and control. Its M4 platform focus helps maintain predictable handling across different track sections.

Fine-Tuned Motor Dynamics

This motor has been developed with driver feedback to shape its torque and speed profile. The result is a motor that responds predictably when you ask for throttle, which helps when managing corner exits and mid-corner speed.

Reliable Control and Smooth Delivery

Designed to be efficient under load, the RPM-M4215A balances usable acceleration with controlled top-end speed. The precise construction reduces surprises during long runs and supports consistent lap performance.

Practical Setup Notes for Racers

Use an ESC that allows detailed timing and brake tuning to match local track grip. Small incremental changes to timing and gear ratio will help you find the best compromise between acceleration and peak speed.

Specifications

  • Type: Brushless Motor
  • Category: Competition Racing
  • Optimization: Output Tuned for Specific Categories

For racers focused on setup work and consistent performance, the Yokomo RPM-M4215A is a sensible choice that rewards careful tuning.
Remark :
Due to limited stock availability, please notice that some Yokomo items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

What gearing changes should I try first?

Begin with a single tooth change on the pinion or spur to see effects on acceleration and top speed. Track length and layout will determine whether more top speed or better acceleration is needed.

Is this motor suitable for club-level competition?

Yes, it targets competitive club and regional racers who adjust setups and require a motor with consistent performance across race runs.

How do I monitor motor temperature effectively?

Use a temperature sensor or infrared gun after practice runs. Aim to keep temps within manufacturer guidance and adjust timing or gearing if temps climb too high.

What maintenance keeps performance steady?

Regularly clean cooling passages, check bearing play, and ensure tight electrical connections. These simple checks prevent gradual performance loss over a season.

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