The Hobbywing QUICRUN 10BL120 Sensored G2 is a 120A brushless electronic speed controller developed for performance-oriented 1/10 touring cars, drift cars and buggies. It supports both sensored and sensorless brushless motors, with true sensored operation available when the ESC is connected to a compatible motor through the six-pin sensor cable.
Compared with the smaller QUICRUN 10BL60 Sensored G2, this model provides substantially greater current capacity and supports both 2S and 3S LiPo power systems. Programmable Boost and Turbo timing, adjustable motor rotation, a selectable 6V/7.4V switch-mode BEC and multiple programming methods give builders more control over acceleration, top speed, braking and steering-electronics performance.
Important: this ESC is not waterproof. Boost and Turbo timing must not be used with a 3S battery. The ESC is supplied without battery or motor connectors, so suitable connectors must be soldered before installation.
Quick Fit Check
Battery: Supports 2S or 3S LiPo batteries.
Vehicle Applications: 1/10 touring cars, drift cars and buggies.
2S Motor Limit: Standard 3650-size, two-pole brushless motor rated at 4.5T or higher when ESC timing is set to 0°.
3S Motor Limit: Standard 3650-size, two-pole brushless motor rated at 10.5T or higher when ESC timing is set to 0°.
Motor Type: Compatible with sensored and sensorless brushless motors.
BEC: Selectable 6V or 7.4V switch-mode output rated at 4A continuous.
Connectors: Battery and motor connectors are not pre-installed.
Programming: Onboard SET button, LED Program Box, LCD G2 Program Box or LCD Program Box Pro.
3S Timing Restriction: Do not use Boost or Turbo timing with a 3S battery.
Water Protection: Not waterproof. Install the ESC in a dry and protected location.
Product Specifications
| Product Name |
Hobbywing QUICRUN 10BL120 Sensored G2 |
| Product Number |
30125002 |
| Scale |
1/10 |
| ESC Type |
Sensored and sensorless brushless ESC |
| Water Protection |
Not waterproof |
| Continuous / Peak Current |
120A / 760A |
| Battery Input |
2S–3S LiPo |
| BEC Output |
Selectable 6V/7.4V switch-mode BEC, 4A continuous |
| BEC Peak Output |
Up to 7A according to the supplied product graphic |
| 2S Motor Limit |
3650-size two-pole motor, 4.5T or higher with ESC timing at 0° |
| 3S Motor Limit |
3650-size two-pole motor, 10.5T or higher with ESC timing at 0° |
| Applications |
1/10 touring, buggy and drift cars |
| Input Wires |
Red and black 12AWG wires, 200mm |
| Motor Wires |
Blue, yellow and orange 12AWG wires, 200mm |
| Battery Connector |
Not pre-installed |
| Motor Connectors |
Not pre-installed |
| Cooling Fan |
25 × 25 × 10mm framed fan, powered by the built-in BEC |
| Fan Voltage Range |
5–8.4V |
| Programming Methods |
SET button, LED Program Box, LCD G2 Program Box and LCD Program Box Pro |
| Programming Connection |
Throttle cable |
| OTA Programmer |
Not supported |
| Data Logging |
Not supported |
| Firmware Upgrade |
Not supported |
| Dimensions |
44 × 36.8 × 32.3mm (L × W × H) |
| Weight |
101.5g including wires |
Core Description
The QUICRUN 10BL120 Sensored G2 combines a high-current 120A hardware platform with the smoother startup and low-speed response of a sensored brushless system. It is designed for builders who need more power capacity than a 60A ESC but still want the accessible programming and value-focused positioning of the Hobbywing QuicRun series.
In a correctly connected sensored system, the ESC receives rotor-position data through the sensor cable. This improves startup consistency and low-speed throttle control, which can be particularly valuable in touring-car corner exits, technical buggy sections and controlled drift transitions.
The ESC can also run a sensorless brushless motor. In sensorless mode, the motor sensor cable is not used, and motor direction can be changed by swapping any two phase wires.
Why Choose the QUICRUN 10BL120 Sensored G2?
120A Current Platform
Provides greater current capacity for higher-performance 1/10 brushless systems.
True Sensored Operation
Delivers smoother startup and more predictable low-speed throttle response with a compatible sensored motor.
2S and 3S LiPo Support
Supports common 1/10 racing voltage and higher-voltage sport configurations when correctly matched.
Boost and Turbo Timing
Provides up to 32° of programmable electronic timing when the ESC is operated on 2S.
Selectable 6V/7.4V BEC
Supports standard-voltage or compatible high-voltage steering servos.
Adjustable Motor Rotation
Allows clockwise or counterclockwise rotation without crossing phase wires in sensored mode.
120A Continuous and 760A Peak Current
The 120A continuous rating gives the 10BL120 Sensored G2 more electrical headroom than the QUICRUN 10BL60 Sensored G2. This makes it better suited to faster touring, drift and buggy combinations using lower-turn 3650 motors within the official limits.
The 760A peak figure represents short-duration current capability rather than a safe continuous operating target. Actual load depends on battery voltage, motor turns, gearing, vehicle mass, drivetrain resistance, tire diameter, traction and timing settings.
Temperature still matters: a higher current rating does not remove the need to check motor and ESC temperature. Stop operation if the ESC casing exceeds 90°C / 194°F, and reduce gearing, timing or motor load before further use.
2S and 3S Motor Selection
The official turn limits apply to a standard 3650-size, two-pole motor with ESC timing set to 0°. They should be treated as minimum motor-turn recommendations rather than universal fitment guarantees.
| Battery |
Motor Recommendation |
Boost/Turbo |
Typical Direction |
| 2S LiPo |
3650 two-pole motor, 4.5T or higher |
Supported; increase gradually |
Touring, drift and performance buggy setups |
| 3S LiPo |
3650 two-pole motor, 10.5T or higher |
Must remain disabled |
Higher-voltage sport setups with conservative gearing |
A 3S battery increases motor RPM and electrical load even when the motor has a higher turn count. Start with conservative gearing and inspect motor, ESC and battery temperature after short test runs.
Sensored and Sensorless Motor Connections
A sensored motor must be wired in the correct phase sequence. Connect ESC phase A to motor phase A, B to B and C to C, then connect the stock six-pin sensor cable between the ESC and motor sensor ports.
Do not reverse a sensored motor by swapping phase wires. Use the programmable Motor Rotation setting instead. Incorrect phase sequencing can cause abnormal operation and may damage the ESC.
| Motor Setup |
Phase Wiring |
Sensor Cable |
Reverse Direction |
| Sensored |
A-to-A, B-to-B, C-to-C |
Required |
Change Motor Rotation setting |
| Sensorless |
No fixed phase sequence |
Not used |
Swap any two motor wires |
Adjustable 6V/7.4V BEC
The built-in switch-mode BEC supplies 4A continuous output and can be set to either 6V or 7.4V. The supplied product graphic states that peak output can reach 7A.
6V Output
Use with standard-voltage receivers and steering servos.
7.4V Output
Use only when the receiver, servo and connected accessories all support high-voltage operation.
Do not set the BEC above the maximum operating voltage of the steering servo or receiver. An incompatible 7.4V setting may damage the connected electronics.
Boost and Turbo Timing up to 32 Degrees
Boost and Turbo timing allow the user to alter electronic motor timing and extract more speed from a suitable 2S system. Both functions can be adjusted from 0° to 32°.
Boost Timing
Boost timing operates throughout the throttle range. The ESC dynamically changes timing in relation to throttle input, affecting speed on both straights and flowing sections.
Turbo Timing
Turbo timing operates at full throttle and increases maximum motor RPM. The Turbo Delay setting controls how long full throttle must be held before Turbo timing activates.
3S restriction: Boost and Turbo timing must not be used with a 3S battery. When operating on 3S, set both values to 0°.
| Function |
Operating Area |
Maximum Setting |
Primary Effect |
| Boost Timing |
Across the throttle range |
32° |
Broader speed and throttle-range response increase |
| Turbo Timing |
At full throttle |
32° |
Additional top-end RPM and straight-line speed |
Higher timing increases current draw and operating temperature. Start at 0°, make small adjustments and check the ESC, motor and battery after every meaningful change.
Motor Rotation Adjustment
The Motor Rotation parameter allows clockwise or counterclockwise operation to suit different chassis and drivetrain layouts.
When viewing the motor shaft from the front, a CCW setting rotates the shaft counterclockwise and a CW setting rotates it clockwise. Many RC vehicles move forward with counterclockwise rotation, but some layouts require the opposite direction.
Programmable Parameters
- Running mode
- Low-voltage cutoff
- Punch
- Drag brake force
- Maximum brake force
- Maximum reverse force
- Neutral range
- Boost timing
- Turbo timing
- Turbo delay
- BEC voltage
- Motor rotation
Running Modes
| Mode |
Operation |
Typical Application |
| Forward with Brake |
Forward and proportional brake without reverse |
Racing |
| Forward/Reverse with Brake |
First reverse command brakes; reverse becomes available after returning to neutral |
General use and training |
| Forward/Reverse |
Immediate reverse response |
Special-purpose vehicles |
Multiple Programming Methods
The ESC provides three practical parameter-adjustment routes:
-
Onboard SET button: supports throttle calibration, parameter adjustment and factory reset.
-
LED Program Box: offers quicker item and value selection through a wired connection.
-
LCD G2 Program Box or LCD Program Box Pro: provides screen-based parameter adjustment.
To use a program box, switch off the ESC and connect the ESC throttle cable to the programming-box interface with the correct polarity. Power on the ESC, select the required item and value, then save the setting.
OTA programming, WiFi Express and firmware updating are not supported.
Comprehensive Protection System
Low-Voltage Cutoff
Reduces and then cuts power when LiPo voltage falls below the selected threshold.
ESC Thermal Protection
Limits operation when ESC temperature becomes excessive.
Motor Thermal Protection
Provides a separate protection warning when supported motor thermal protection activates.
Throttle Signal Protection
Stops normal drive output when a valid throttle signal is not detected.
Overload Protection
Helps protect the ESC against abnormal loading within the intended operating range.
LED Status and Protection Warnings
-
Neutral with timing enabled: red and green LEDs are off.
-
Neutral with Boost and Turbo at 0°: red LED flashes in Blinky mode.
-
Forward: red LED remains on; green LED also lights at full throttle.
-
Brake: red LED remains on; green LED lights at full brake when maximum brake force is set to 100%.
-
Reverse: red LED remains on.
-
Low-voltage protection: repeating single red flash.
-
ESC thermal protection: repeating single green flash.
-
Motor thermal protection: repeating double green flash.
Compatible RC Applications
| Vehicle Type |
Why It Fits |
Main Setup Check |
| 1/10 Touring Car |
Sensored response, strong braking and programmable timing |
Motor turns, gearing and temperature |
| 1/10 Drift Car |
Smooth low-speed control, Boost/Turbo tuning and adjustable motor rotation |
Chassis clearance and servo voltage |
| 1/10 Buggy |
120A capacity for suitable 2S or conservative 3S brushless setups |
Traction, gearing, fan airflow and weather protection |
Potential applications include suitable chassis from Tamiya, Yokomo, MST, Reve D, Xray, Schumacher, Team Associated, Kyosho and similar manufacturers. These are general application examples rather than model-specific fitment approvals.
Throttle Calibration
Throttle calibration is required when the ESC is first installed and whenever the transmitter, receiver, endpoints or throttle trim are changed.
- Turn on the transmitter and set throttle D/R, EPA and ATL to 100% with throttle trim at neutral.
- Switch off the ESC.
- Hold the SET button while switching on the ESC.
- Release SET immediately when the red LED begins flashing.
- Store neutral, full throttle and full brake positions in sequence by pressing SET at each position.
Remove the pinion gear or keep all driven wheels clear of the ground while calibrating or programming the ESC.
What to Check Before Buying
- Your vehicle is a suitable 1/10 touring car, drift car or buggy.
- Your battery is a 2S or 3S LiPo pack.
- Your 3650 motor meets the applicable 2S or 3S turn limit.
- Boost and Turbo will remain disabled when using 3S.
- Your chassis provides at least 44 × 36.8 × 32.3mm of ESC space, plus room for wires and fan airflow.
- You are prepared to solder appropriate battery and motor connectors.
- The ESC can be protected from water because it is not waterproof.
- Your receiver and servo support the selected BEC voltage.
Frequently Asked Questions
Is the QUICRUN 10BL120 Sensored G2 waterproof?
No. It is not waterproof. Keep the ESC away from water, wet tracks, mud and conductive debris.
Can it run on 3S LiPo?
Yes. It supports 2S and 3S LiPo batteries. With 3S, use a standard 3650 two-pole motor rated at 10.5T or higher and keep Boost and Turbo timing at 0°.
Can I use Boost or Turbo timing on 3S?
No. The supplied product information specifically states that Boost and Turbo timing must not be used with a 3S battery.
What is the motor limit on 2S?
The official recommendation is a standard 3650-size two-pole motor rated at 4.5T or higher with ESC timing set to 0°.
Can it run a sensorless brushless motor?
Yes. The ESC supports sensored and sensorless brushless motors.
How high can Boost and Turbo timing be set?
Boost and Turbo timing can each be adjusted up to 32° when used in a suitable 2S system.
Can it power a high-voltage steering servo?
Yes, when the BEC is set to 7.4V and the receiver, servo and connected accessories all support 7.4V operation.
Does it include battery and motor connectors?
No. Battery and motor connectors are not pre-installed.
Does it support OTA or Bluetooth programming?
No. Programming is completed through the SET button or a compatible wired Hobbywing program box.
Package Includes
- Hobbywing QUICRUN 10BL120 Sensored G2 ESC
- 25 × 25 × 10mm cooling fan
- Switch and throttle/receiver lead assembly
- Installed battery and motor wires without connectors
Important Installation Notes
- Confirm battery polarity before connecting power. Reverse polarity will damage the ESC.
- Use a soldering iron rated at 50W or higher and fully insulate every solder joint.
- For sensored operation, connect A-to-A, B-to-B and C-to-C before installing the sensor cable.
- Do not power the receiver from another source unless the red wire in the ESC throttle plug has been disconnected.
- Keep fan blades and cooling passages clear of wires and bodywork.
- Stop operation if the ESC casing exceeds 90°C / 194°F.
- Disconnect the battery after every use, even when the ESC switch is off.
- Reduce timing, gearing or motor load if thermal protection repeatedly activates.
Download the Hobbywing QUICRUN 10BL120 Sensored G2 user manual
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