for Mountain Bike Rear Derailleur 8/9 Speed Aluminum Alloy for(M390)

• Wide Compatibility: Designed for 8/9 speed systems (24/27 gears), this rear derailleur fits children's commuting bikes, mountain tricycles, and recreational MTBs perfectly.
• Quiet & Smooth Shifting: Featuring precise guide wheels and optimized springs, it delivers a silent and fluid gear change experience for maximum riding comfort.
• Stable Chain Protection: Ensures for accurate gear positioning to minimize chain wear, providing a smoother and more efficient drivetrain performance on any terrain.
• Aluminum Alloy: Constructed from high-strength aluminum alloy, this unit is impact-resistant and built to withstand the demands of rough off-road trails.
• for versatile Application: Ideal for mountain trails, off-road sections, and daily commuting; a reliable upgrade solution for customizing your bike's gear system.

Features: * Wide Compatibility: Suitable for mountain bikes for children's commuting, mountain tricycles, recreational commuting bikes, and various 8/9/24/27- mountain bikes; Color: Black. * Quiet and Smooth: Precise guide wheels and optimized springs deliver a quieter, smoother shifting experience for a more comfortable ride. * Stable Chain Protection: Precise gear positioning ensures stable shifting, reduces chain wear, and provides a smoother, more efficient drivetrain. * Superior Materials: Made of - aluminum alloy, for impact-resistant and adaptable to various challenging terrains. * Ideal for Multiple Scenarios: Suitable for mountain trails, off-road sections, and commuting on rough roads; also suitable for customization/upgrades. Specifications: *Product Name: for Mountain Bike Rear Derailleur *Material: Aluminum Alloy *Size: approx. 20*15*5cm *Color: Black *Weight: about 320g Package Content: 1 x for Mountain Bike Rear Derailleur