YIKONG YK4107 1/10 Brushed RC Crawler , YIKONG YK4107Pro 1/10 Brushless RC Crawler
In 2025, the RC crawler market welcomes a pair of formidable “brothers” — the YIKONG YK4107 and YK4107 Pro. These two 1/10 scale flagship RC crawlers both feature remote-controlled differential locks, tank turn (DIG) capability, and a new-generation low center-of-gravity chassis, offering high levels of playability. However, they differ significantly in power systems and handling experience. This review covers their appearance, electronics, features, and usage tips for the outrunner motor.
1. Basic Info & Appearance Comparison
| Category | YK4107 | YK4107 Pro |
|---|---|---|
| Dimensions | 521 × 247 × 267mm | 521 × 247 × 267mm |
| Weight | 3.1kg | 3.1kg |
| Colors | Deep Sea Blue, Slate Gray, Aqua Blue | Exclusive Emerald Green (Launch Edition) |
| Body Shell | 1.2mm PC, Clear Windows | 1.2mm PC, Exclusive Metallic Paint |
| Structure | Full Metal Gears + Metal Shocks + Portal Axles | Same with Reinforced Details |
The chassis structure of both models is identical. The main difference lies in the paint and finish — the Pro version features a premium metallic green exclusive to this model, enhancing its professional look.
2. Power System & Electronics
| Category | YK4107 | YK4107 Pro |
|---|---|---|
| Motor | 550 Brushed | 2100KV Brushless Outrunner |
| ESC | 2-in-1, High/Low Speed Supported | Independent 60A Brushless ESC |
| Servo | 25KG Metal Gear (with buffer) | Same |
| Transmitter | 2.4GHz 10-channel | Same |
| Start Method | Remote Start | Remote Start |
| Driving Modes | Climb/Race Modes Supported | Climb/Race Modes Supported |
The YIKONG YK4107 Pro version is powered by a 2100KV brushless outrunner motor, significantly outperforming the brushed version in terms of power delivery, especially during steep climbs or rough terrain traversal. It’s paired with a 60A standalone brushless ESC, capable of handling higher current loads and sustained output.
⚠ Tips for Using an Outrunner Motor:
- Water & Dust Protection: The exposed rotor is vulnerable — avoid water immersion and prevent debris entry. Clean and dry the motor promptly after water contact.
- Avoid Physical Impacts: Since the rotor is external, drops or hard collisions may cause rotor deformation or shaft misalignment.
- Cooling & Ventilation: Maintain airflow during extended runs to avoid overheating. Consider adding a cooling fan or taking breaks.
- Battery Recommendation: Use high-discharge 3S LiPo batteries (e.g., 5200mAh 25C or higher) to ensure stable and efficient power output.
3. Feature Comparison
| Feature | YK4107 | YK4107 Pro |
|---|---|---|
| Tank Turn (DIG) | Yes | Yes |
| Diff Lock | Front & Rear (Remote Controlled) | Same |
| High/Low Gear Switch | Yes | Yes |
| Remote Start | Yes | Yes |
| Adjustable Tow Power | Yes | Yes |
| Simulated Interior | Yes | Yes |
| LED Light System | Fully Controllable | Same |
| Mode Switching | Climb/Race | Climb/Race |
| Weight Module Support | Yes (Front & Rear) | Yes |
Both versions are well-equipped with high-end features. The DIG function offers tank-like steering; remote diff locks, LED control, and simulated interiors are rare at this price point.
4. Drivetrain & Suspension
- Suspension: Independent 4-wheel metal hydraulic shocks
- Axles: Front and rear portal axles for greater ground clearance
- Drive Shafts: Front metal CVD design for high efficiency
- Tires: 116×42mm professional crawler tires with deep tread
- Shocks: Metal-bodied, preload-adjustable, terrain-adaptive
Both models share the same off-road-capable chassis and suspension design, delivering excellent articulation and rigidity for tackling outdoor trails, rocky climbs, water crossings, and uneven terrain.
YIKONG YK4107 1/10 RC CAR Parts
5. Recommended Battery Options
| Model | Recommended Battery |
|---|---|
| YK4107 | 2S or lightweight 3S LiPo (7.4V 7200mAh 50C) |
| 7.4V 2S 7200mAh Battery 11.1V 3S 5200mAh Battery 11.1V 3S 6500mAh Battery | |
| YK4107 Pro | 3S LiPo (11.1V 5200–6500mAh 25–35C) |
| 11.1V 3S 5200mAh Battery 11.1V 3S 6500mAh Battery |
The Pro version’s brushless setup requires higher capacity and discharge ratings. A quality 3S LiPo ensures stronger throttle response and longer runtime.
6. Recommended User Groups
- YK4107: Best for beginners or casual users looking to explore core RC crawling without needing max performance.
- YK4107 Pro: Ideal for experienced hobbyists, competition drivers, or those keen on upgrades and serious off-roading.
Final Verdict: Which One to Choose?
| You Are… | Recommended Model |
|---|---|
| A beginner on a budget | ✅ YK4107 |
| A hardcore crawler seeking top performance | ✅ YK4107 Pro |
| A fan of varied color options | ✅ YK4107 |
| Looking for a competitive or mod-friendly base | ✅ YK4107 Pro |
Conclusion: Whichever you pick, the YK4107 series delivers performance far beyond its price point. The Pro version is even ready for competitive events out of the box — making it one of the best high-level entry platforms currently available.
https://www.yikongrccar.com/33-yikong-yk4107-upgrades
Need upgrade part recommendations, transmitter programming tips, or outrunner motor maintenance guides? Feel free to leave a comment and let’s discuss!
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