Description
Product Overview
The RUIDING rear derailleur protector is engineered from high‑quality iron, delivering a rust‑proof, durable shield for your bike’s drivetrain. Its unique arch‑angle design distributes impact forces, preventing deformation even during hard falls. Measuring 11.5 cm × 5.4 cm, the two‑piece set fits most mountain, road and folding bikes. Installation is straightforward: pull out the axle, thread the protector onto the axle, and tighten with the supplied nut. The product dimensions are 4.53″ L × 2.13″ W × 4.53″ H, and it weighs just 0.09 kg, adding minimal weight while offering maximum protection.
Usage
Designed for cyclists who demand reliable protection on varied terrain, this derailleur guard excels in mountain trails, urban commutes, and long‑distance road rides. Whether you’re tackling rugged off‑road sections or navigating city streets, the protector safeguards the rear derailleur from knocks and impacts. Its universal fit makes it suitable for most bike frames, and the easy installation means you can equip your bike in minutes before heading out.

Why Choose Us
RUIDING combines precision engineering with practical design. The iron material provides superior strength compared to plastic alternatives, while the rust‑proof coating ensures longevity even in wet conditions. Our arch‑angle geometry is patented to absorb shock efficiently, reducing the risk of derailleur damage. Each unit undergoes strict quality control, guaranteeing a product that meets the expectations of serious cyclists.
Key Features
- High‑quality iron construction for maximum durability
- Rust‑proof coating resists corrosion in all weather
- Arch‑angle design absorbs impact and prevents deformation
- Universal fit for mountain, road and folding bicycles
- Simple bolt‑on installation with included nut
FAQ
Will this protector fit my bike?
The protector is designed to fit most standard rear derailleur setups on mountain, road and folding bikes. Measure your derailleur mounting area to ensure compatibility.
Is the iron material heavy?
Despite being made of iron, the protector weighs only 0.09 kg, adding minimal weight while providing strong protection.
How do I install the protector?
Remove the rear axle, slide the protector onto the axle, and tighten the supplied nut. No special tools are required.
Can I use this on a bike with a carbon frame?
Yes, the protector’s mounting method does not damage carbon frames, but ensure the mounting bolts are torqued to the manufacturer’s specifications.
What maintenance is required?
Periodically wipe the protector with a dry cloth to remove dirt. The rust‑proof coating eliminates the need for additional lubrication.




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