4.5T Yokomo YOKRPM-B45 Racing Brushless Motor for RC Cars  [YOKRPM-B45]

Yokomo RPM-B45 - Racing Perf. M2 Brushless Motor 4.5T
Price:
NZD$146.71
Brand:
Yokomo
Model:
YOKRPM-B45
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Performance and setup notes

The Yokomo YOKRPM-B45 is specified as a 4.5T brushless motor aimed at delivering race-focused performance in RC car applications. The write-up concentrates on vehicle setup, installation considerations, and tuning impact rather than marketing claims, and treats the unit solely as an RC component.

Motor compatibility depends on the can size, mounting hole pattern, pinion fitment, and whether the ESC supports sensorless operation. Use the YOKRPM-B45 when the can and screw layout match your chassis motor plate and confirm pinion and shaft dimensions prior to installation.

When using a 4.5T motor such as the YOKRPM-B45, tuning usually revolves around selecting the right gear ratio, adjusting ESC timing, and choosing battery voltage to balance punch versus top speed for the chosen track surface. Incremental changes to gearing and throttle mapping generally yield the most consistent results.

Specifications

  • Item: Racing Perf. M2 Brushless Motor 4.5T
  • Material: Not specified by manufacturer
  • Model Number: YOKRPM-B45
  • Compatibility: Car motors for RC car applications

For track-focused setups, the YOKRPM-B45 supplies a 4.5T winding choice; always confirm fitment and ESC compatibility before fitting and focus initial testing on gearing and throttle curves.
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 tuning changes help manage motor temperature?

Reduce gear ratio load, limit continuous run time during initial tests, and use a battery with appropriate discharge rating; monitor temperature after short runs and adjust gearing or throttle curves if temps climb.

Is there a break-in procedure for the YOKRPM-B45?

There is no mandated factory break-in, but gradual increases in run time and moderate loads during the first few outings help identify fitment or mounting issues while keeping temperatures in check.

How durable are these motors under club racing use?

Durability varies with setup and load; correct gearing, secure mounting, and sensible ESC settings reduce stress and extend motor life under regular club-level competition.

What role does ESC timing play for a 4.5T motor?

Lower timing gives smoother power delivery and less heat, while increased timing raises top end at the cost of higher current and temperature; adjust in small steps and monitor performance and temps.

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