Overview
MAD Runner70125 is a sensored brushless motor (BLDC) designed for 1/5 scale RC cars, featuring an IP67-rated waterproof/dustproof construction and sensored waterproof connectors for reliable operation in harsh conditions.
Key Features
- Higher RPM, lower resistance
- Imported bearings; stable at high speed; quick response
- Compact, durable high-strength design: precision bearings, reinforced alloy shell, tough steel shaft
- Precision-built reliability: rigorous quality control, reinforced rotor design, precision-balanced for longevity, optimized high-speed stability
- Fast, smooth, and efficient: ultra-thin 0.2mm silicon steel core; high-density heat-resistant windings; lower energy loss & cooler operation; optimized power efficiency
- All-weather toughness: IP67 rated; fully sealed waterproof/dustproof design; built for harsh environments
For compatibility questions (including pairing with a suitable ESC) and support, contact https://rcdrone.top/ or email support@rcdrone.top.
Specifications
| Name | Runner70125 |
| Type | BLDC |
| Model No | 420KV / 560KV |
| Cell Count (70125-420KV) | 8-16S |
| Cell Count (70125-560KV) | 6-12S |
| No-load Current | 420KV <= 2.0A / 560KV <= 3.0A |
| Outer Diameter / End Length | Ø70mm (2.760in) / L125mm (4.921in) |
| Shaft Diameter / End Length of Shaft | Ø8mm (0.315in) / L30mm (1.181in) |
| Bearing (Front/Rear) Specification | D22*d8*T7 |
| Weight | 1998g |
| Pairs of Poles | 2 pairs of poles |
Size Specification
- Ø37
- 16.5 ± 0.5
- 65.6 ± 0.2
- 6-M3
- Ø25.4
- 3-Ø4.0
- Ø5
- 15
Applications
- 1/5 offroad RC cars
- RC trucks (heavy load)
- Robotics applications
Details

The MAD Runner 70125 sensored brushless motor features a rugged, finned can design and an IP67 rating for added protection.

The MAD Runner70125 sensored brushless motor includes a sensor lead and pairs with a fan-cooled ESC for RC builds.

The MAD Runner70125 sensored brushless motor uses a reinforced alloy shell, precision bearings, and waterproof sensor connectors for dependable RC power.

The MAD Runner70125 brushless motor uses a ribbed aluminum housing, protruding shaft, and attached leads for straightforward installation and wiring.

The Runner 70125 motor is designed for fast, smooth efficiency with a 0.2mm silicon steel core and heat-resistant windings.

The MAD Runner70125 sensored brushless motor features an IP67-rated sealed design for waterproof and dustproof protection in harsh conditions.

Runner70125 sensored brushless motor specs list a 70mm x 125mm body, 8mm shaft, and approx. 1960g weight for fitment planning.
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