Yokomo BL-RS4 - BL-RS4 Speed Controller - Black

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BL-RS4 - BL-RS4 Speed Controller - Black

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Yokomo - BL-RS4 - BL-RS4 Speed Controller - Black

Yokomo released there new range of high performance sensored brushless speed controllers. The BL-4 range is available in 3 versions: BL-PRO4; BL-RS4 and the BL-SP4. All with different specifications so there is always an option for your demands.

Improvements that are made are depending on the version. But all benefit from the optimized software. Its advised to use the Program Box YPB4 for more easy programming.

The design is also updated. The esc casing has a premium black anodizing with chamfered edges. Its perfect to suit the design of the new Yokomo YD drift car range.
Along with the BL-4 ESC range Yokomo also released the ZERO 2 brushless motor. Together they are a perfect match in both design and performance.

The BL-SP4 is the entry level ESC. This now has Turbo function added. The case is most compact of all 3. The software is improved and has more features for entry level drifters.

The BL-RS4 has a full aluminium case to improve cooling and makes the ESC run cooler during those long drift sessions. The BL-RS4 comes without a cooling fan. A nice touch in design the the black wires for power switch and the receiver wire. This give is a super clean look when you have instilling in you your chassis.

The BL-PRO4 tops the new range. Its based on the BL-RS4 but comes with a new cooling fan and fan guard. This gives it a very high quality look and make it suitable for more power.


  • Boost programmable - adjustable for RPM or throttle position
  • Turbo programmable - turbo delay and turbo slope
  • Brake programmable - mid; med and max throttle position.
  • Brake force programmable - soft or hard
  • Motor rotation programmable - A-B-C or C-B-A
  • Frequency programmable - for forward; brake and neutral brake
  • High voltage servo support - BEC output to 7.4 support
  • Only for brushless motors
  • Program Box YPB4 advised for more easy programming
Specifications BL-RS4:
  • Motor Type: Sensored / 4Pole Sensored Brushless
  • Motor Limit: >5.5T (when useing the fan)
  • Operation Voltage: 3.7V - 7.4V
  • Forward / Brake / Reverse: Yes
  • Full Aluminium Case / Heatsink: Yes
  • Typ. Voltage Drop @20A per phase: 0,016V
  • Rated Current per phase: 424A
  • Linear BEC Output: 6V / 7.4V Build in DC booster / 3A continuous
  • BEC Output Short Protection: Yes
  • 0-Boost Mode: Yes
  • Multi Frequency System: Yes
  • Power Wires: 12 AWG
  • Case Size: 32.9mm x 34.6mm x 21mm (without fan)
  • Weight: 50gr (without cable and fan)
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