The YIKONG YK4073 RC Car Parts Alum Center Brace Bar (Part No. 71187) is an original aluminum chassis reinforcement kit designed for the YIKONG YK4073 RC Car. The kit includes one 171 mm aluminum brace bar, two 146 mm aluminum brace bars, and two connecting brackets. Together, these components reinforce the chassis structure, improve rigidity, and help the vehicle better withstand twisting forces during off-road driving and hard bashing. Proper installation is essential to achieve the best performance and durability.
What Is Included in the Kit?
The YIKONG YK4073 RC Car Parts Alum Center Brace Bar (71187) kit includes:
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Aluminum Brace Bar (171 mm) ×1
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Aluminum Brace Bar (146 mm) ×2
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Connecting Brackets ×2
Before installation, verify that all parts are included and free from damage.
How to Install the Alum Center Brace Bar (71187)
Installing the YIKONG YK4073 RC Car Alum Center Brace Bar is straightforward when performed in the correct order.
Step 1: Remove the Original Parts
If your vehicle already has the factory brace bars installed, remove the original screws and reinforcement bars carefully while keeping the mounting hardware organized.
Step 2: Identify Each Brace Bar
Separate the three aluminum bars by length:
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171 mm brace bar ×1
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146 mm brace bars ×2
Confirm each bar will be installed in its correct position.
Step 3: Install the Connecting Brackets
Mount the two connecting brackets onto the chassis first, ensuring they are positioned correctly and sit flush against the mounting points.
Step 4: Install the Aluminum Brace Bars
Attach the 171 mm and two 146 mm aluminum brace bars to the connecting brackets and chassis using the original mounting screws.
Do not fully tighten the screws until every bar has been positioned correctly.
Step 5: Tighten All Screws Evenly
Once all three brace bars are correctly aligned, tighten every screw evenly.
Avoid overtightening, as excessive force may damage the threads or place unnecessary stress on the aluminum parts.
Step 6: Final Inspection
After installation:
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Check that every screw is securely tightened.
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Confirm the brace bars are properly aligned.
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Ensure nothing interferes with the drivetrain, suspension, or steering.
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Verify that all parts remain firmly secured after gently flexing the chassis.
Installation Tips
To achieve the best results when installing the YIKONG YK4073 RC Car Parts Alum Center Brace Bar (71187):
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Install the connecting brackets before mounting the brace bars.
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Do not force any part into position.
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Tighten screws gradually in sequence.
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Check that the chassis remains straight after installation.
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Reinspect all mounting screws after the first few runs.
Daily Maintenance Tips
Regular maintenance helps maximize the lifespan of the aluminum brace kit.
Recommended maintenance:
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Check all mounting screws regularly.
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Inspect the aluminum bars after heavy impacts.
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Remove dirt and sand after off-road driving.
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Replace bent or severely damaged parts promptly.
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Ensure the connecting brackets remain securely fastened.
FAQ
Q1: Does the Alum Center Brace Bar improve chassis strength?
Yes. It increases chassis rigidity and helps reduce flex during off-road driving and hard bashing.
Q2: Why are there three aluminum bars of different lengths?
Each bar is designed for a specific mounting position to provide balanced chassis reinforcement.
Q3: Should I tighten every screw immediately?
No. Install all parts first, then tighten every screw evenly after confirming proper alignment.
Q4: Can I reuse the original mounting screws?
Yes. Unless the screws are damaged, the original mounting hardware can normally be reused.
Q5: Do I need to check the brace bars after driving?
Yes. After several runs, especially following hard bashing, inspect the screws and aluminum bars to ensure everything remains secure.
Product Specifications
| Item | Specification |
|---|---|
| Product Name | Alum Center Brace Bar |
| Part Number | 71187 |
| Compatible Model | YIKONG YK4073 RC Car |
| Material | Aluminum |
| Included Parts | 171 mm Brace Bar ×1, 146 mm Brace Bar ×2, Connecting Brackets ×2 |
| Function | Reinforces the chassis, improves rigidity, and reduces chassis flex |
Conclusion
The YIKONG YK4073 RC Car Parts Alum Center Brace Bar (71187) is an excellent chassis reinforcement upgrade for the YIKONG YK4073 RC Car. With one 171 mm aluminum brace bar, two 146 mm aluminum brace bars, and two connecting brackets, it significantly improves chassis rigidity and durability. Careful installation, proper screw tightening, and regular maintenance will help your YIKONG YK4073 RC Car perform more reliably during everyday driving, rock crawling, and hard bashing.