Mountain Bike Rear Derailleur Wheel 12 Teeth Bicycle Guide Roller

Details

• STABILIZED CHAIN GUIDE: Precision-machined serrations increase smoothness, minimize throwing risks and maintain power transmission even in the event of impact.
• STURDY MATERIAL Aluminum ceramic composite with sealed bearing mechanism and multi-layer protection maintains durable strength of rear derailleur roller
• Improved function: ceramic composite bearings significantly reduce operating resistance, thus promoting the power yield and ensuring reliable rear derailleur behavior during intensive use.
• LIGHTWEIGHT OPTIMIZATION Focus on minimized weight by forging precision ensures stability, improves chain responsiveness and effectively reduces the overall weight of bicycle spare parts.
• WIDE COMPATIBILITY Ensures seamless integration into the powertrain with easy assembly, matches multiple rear derailleur types for reliable functionality on mountain bikes and e-bikes.