Rear Derailleur for 8/9/24/27 Speed Bikes, Lightweight Aluminum Alloy Construction with Precise Positioning, Quiet Operation for Trail and City Riding, Black Color(M390)

• WIDE COMPATIBILITY: Fits 8/9/24/27 speed mountain bikes for kids or adults, making this bike derailleur a suitable upgrade for various cycling needs
• QUIET SHIFTING: Optimized springs and guide wheels deliver smooth gear changes, reducing noise while you ride on trails or commute through the city
• STABLE PROTECTION: Precise positioning minimizes chain wear and guarantees efficient power transfer, keeping your bike components functioning reliably over time
• ROBUST BUILD: Crafted from high-quality aluminum alloy to withstand for impact, this rear derailleur handles rough terrains and challenging off-road sections easily
• for versatile USE: Perfect for mountain trails or daily commuting, these bicycle parts offer a reliable solution for customizing your bike setup effectively

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 high-quality aluminum alloy, 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: Mountain Bike Rear Derailleur *Material: Aluminum Alloy *Size: approx. 20*15*5cm *Color: Black *Weight: about 320g Package Content: 1 x Mountain Bike Rear Derailleur