
A massive-scale electric crawler engineered for extreme speed and power
The GR1 Pro 1/5 249KM/H high speed RC off road car represents a bold step into the world of extreme-scale remote control vehicles. Built for enthusiasts who demand raw performance, engineering precision, and large-scale realism, this model blends rock crawler capability with high-speed potential in a way few RC platforms can match.
With a massive footprint, advanced drivetrain, dual-speed transmission, and compatibility with powerful 12S setups, this vehicle is not just another RC carโit is a high-performance machine designed to dominate rough terrain and deliver breathtaking speed.
In this detailed review, we explore every aspect of the GR1 Pro 1/5 scale RC off road car, including its construction, drivetrain, suspension, electronics, and real-world usability.
Overview of the GR1 Pro 1/5 RC Off Road Car
The GR1 Pro 1/5 RC rock crawler and high-speed off-road car is designed as a near-assembled model, giving users the flexibility to customize and fine-tune the build. It arrives unpainted, allowing full personalization of the body.
This model is particularly unique because it combines:
- High-speed performance potential up to 249 km/h
- Rock crawler articulation and suspension geometry
- Heavy-duty metal chassis construction
- Advanced drivetrain with differential locks
This hybrid design makes it suitable for both extreme speed runs and technical off-road challenges.
Key Specifications and Product Data Table
Below is a detailed specification table based on typical Amazon listing data:
| Feature | Details |
|---|---|
| Product Name | GR1 Pro 1/5 High Speed RC Off Road Car |
| Scale | 1/5 |
| Material | Metal, Plastic |
| Condition | New, unpainted, almost assembled |
| Vehicle Size | 92.5 x 60 x 42 cm |
| Weight | 27.5 kg (without battery) |
| Motor | 70125-560KV Brushless Motor |
| ESC | MAX4 300A Brushless ESC |
| Transmission | 2-speed metal gearbox |
| Steering Servo | Dual 120KG servos |
| Gearshift Servo | 70KG servo |
| Differential Lock Servo | 27KG servo |
| Battery | 22.2V 6S 16000mAh x2 |
| Drive System | Rear axle with differential locks |
| Wheelbase | 590 mm |
| Wheel Diameter | 230 mm |
| Ground Clearance | 130 mm |
| Approach Angle | 65ยฐ |
| Departure Angle | 45ยฐ |
| Passing Angle | 50ยฐ |
| Maximum Speed (Estimated) | Up to 249 km/h |
| Model ID | UFRC-GR1Pro-BL-ARTR-Unpainted |
Build Quality and Materials
Heavy-duty metal chassis
The GR1 Pro RC off-road car features a robust metal chassis designed to withstand extreme conditions. Its large size and reinforced structure make it capable of handling high speeds and rough terrain without compromising stability.
Large-scale design
At over 90 cm in length, this model commands attention. The transparent, unpainted body allows users to customize the appearance, making it a great option for hobbyists who enjoy personalization.
Drivetrain and Transmission System
Two-speed metal gearbox
The 2-speed transmission provides flexibility for different driving scenarios:
- Low gear for torque-heavy crawling
- High gear for speed runs
This dual-purpose design enhances versatility.
Differential locking system
The vehicle includes:
- Central differential lock
- Rear axle differential lock
These features improve traction by distributing power evenly across the drivetrain.
Motor and Electronic Performance
Powerful brushless motor
The 70125-560KV brushless motor delivers high torque and efficiency. It is designed to handle demanding conditions and high-speed operation.
High-capacity ESC
The MAX4 300A ESC provides reliable power management, ensuring smooth acceleration and consistent performance.
Dual battery system
The inclusion of two 6S 16000mAh batteries allows for extended runtime and supports high-power configurations.
Suspension and Articulation
Long-travel suspension system
The extra-long suspension travel ensures smooth performance on uneven terrain. This is particularly important for a vehicle of this size and weight.
Extreme articulation capability
The vehicle can lift a single wheel up to 320 mm while maintaining ground contact, demonstrating exceptional articulation. This makes it highly capable in rock crawling scenarios.
Off-Road Performance
Terrain adaptability
The GR1 Pro RC crawler performs well on:
- Rocky surfaces
- Dirt trails
- Sand
- Grass
The combination of traction, suspension, and power ensures reliable performance.
Stability at high speeds
Despite its size, the vehicle remains stable during high-speed runs, thanks to its wide stance and low center of gravity.
Speed Capabilities and Configurations
Variable speed performance
The vehicle supports different power setups:
- 8S configuration: up to 80 km/h
- 12S configuration: up to 110 km/h
- Dual 12S setup: up to 249 km/h (estimated)
This flexibility allows users to tailor performance to their needs.
Control System and Setup
Customizable electronics
The model does not include a remote controller or receiver, allowing users to choose their preferred system.
Advanced servo system
The high-torque servos provide precise control over steering, gear shifting, and differential locks.
Advantages of the GR1 Pro RC Off Road Car
Extreme performance potential
Capable of reaching very high speeds with the right setup.
Durable construction
Metal chassis and components ensure long-term reliability.
Versatile design
Suitable for both crawling and high-speed driving.
Advanced drivetrain features
Includes differential locks and a 2-speed gearbox.
Potential Drawbacks
Requires additional components
Remote controller and charger are not included.
High weight
At 27.5 kg, it is heavy and less portable.
Complexity
Advanced features may require experience to manage.
Maintenance and Care
To keep the vehicle in top condition:
- Regularly inspect drivetrain components
- Clean after off-road use
- Check battery health
- Tighten screws and connections
Proper maintenance is essential for long-term performance.
Who Should Buy This Model?
Ideal for:
- Advanced RC enthusiasts
- High-speed RC hobbyists
- Off-road and crawler fans
Not ideal for:
- Beginners
- Casual users
Final Verdict
The GR1 Pro 1/5 249KM/H RC Off Road Car is a powerful and versatile machine that pushes the boundaries of RC performance. Its combination of speed, durability, and off-road capability makes it a standout option for serious hobbyists.
While it requires additional setup and experience, the performance and customization options it offers make it a worthwhile investment for those seeking a high-end RC vehicle.