Yokomo BL-RS4B High-Response Brushless ESC for On-Road Racing  [BL-RS4B]

Yokomo BL-RS4B BL-RS4 Brushless speed controller
Price:
£142.79
Brand:
Yokomo
Model:
BL-RS4B
GTIN:
0639342202232
Condition:
Brand New
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Accurate Drive Control with Yokomo BL-RS4B

The Yokomo BL-RS4B provides precise motor management for consistent lap times and better corner exits. It is designed to integrate with a range of MRTC-BD chassis layouts.

Engineered for Custom Setup

With its full programming suite, the BL-RS4B lets you calibrate throttle curve, drag brake and power delivery to suit tyre choice and surface grip. The compact chassis-friendly form keeps installation simple.

List of Compatible Chassis

Compatible Models

  • MRTC-BD716
  • MRTC-BD716H
  • MRTC-BD716O
  • MRTC-BD716S
  • MRTC-BD8
  • MRTC-BD8-P
  • MRTC-BD818
  • MRTC-BD818A
  • MRTC-BD8A
  • MRTC-BD8AP
  • MRTC-BD8SV

Specifications

  • Voltage Range: 6V-7.4V
  • Motor Compatibility: Brushless motors
  • Programmability: Fully programmable settings
  • Dimensions: Compact design for easy installation

The Yokomo BL-RS4B is a straightforward upgrade for racers who want more control over power delivery and braking without complex fitting work.
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 motor timing works best with this ESC?

Motor timing depends on your motor type and desired response. Start with conservative timing and increase gradually while monitoring temperature and efficiency.

Can I use it in both practice and race settings?

Yes, the programmable options let you create profiles for practice runs and race settings so you can switch behaviour to suit conditions quickly.

Are firmware updates available?

Refer to Yokomo resources for any firmware tools or updates supported for the BL-RS4B. Follow official instructions when performing updates.

How do I prevent overheating?

Use a motor and gearing that match the ESC voltage, ensure airflow around the unit, and avoid sustained high-load runs without cooling breaks.

What checks before first run?

Verify motor and battery connections, secure mounting, correct polarity, and that programming matches your motor and battery specs before first power-up.

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