bociloy 4Pcs 1/5" x 6 Balls Bicycle Ball Bearing Retainer, Bike Wheel Hub Bearings for Front Rear Axle Replacement, Crank Bottom Bracket Repair Parts for Mountain Road Kids Bikes

• Package Including: You will receive 4Pcs 1/5" x 6 Balls Bicycle Ball Bearing Retainer, Outer diameter: 20mm/0.79inch, Inner diameter: 11mm/0.43inch, Ball diameter: 5mm/0.2inch. Designed to fit most standard bicycle models including mountain, road, hybrid, and children's bikes.
• Precision Bicycle Bearing Solution: These ball bearing retainers ensure smooth wheel rotation for your bike's front and rear hub assemblies. Engineered for optimal performance, they reduce friction in wheel axles and crank systems, providing reliable operation for mountain bikes, road bicycles, and kids bikes during daily rides.
• Complete Replacement Parts Set: Each package contains multiple bearing retainers suitable for various bicycle repair needs. Whether servicing wheel hubs, bottom brackets, or axle assemblies, these components work as direct replacements for worn bearings, restoring your bike's smooth rolling performance and eliminating grinding noises.
• Easy Installation Process: Replace worn bearings quickly with these pre-assembled retainer cages that simplify the repair process. No special expertise required - simply remove old bearings, clean the bearing races, apply fresh grease, and install new retainers to restore smooth wheel and crank operation.
• Essential Maintenance Components: Keep your bicycle running smoothly with these critical repair parts for regular maintenance. Perfect for addressing common issues like rough wheel rotation, noisy hubs, or stiff pedaling, helping extend the life of your bike's moving parts through proper bearing replacement.

Product Description: Features: Smooth Rolling Performance: Ball bearing retainers restore proper wheel rotation and eliminate grinding sounds. Essential components for maintaining bike hub efficiency. Versatile Application: Suitable for front wheels, rear hubs, and bottom bracket assemblies. Works with mountain, road, and children's bicycles of various brands. Simple Bearing Service: Pre-assembled retainer cages make replacement straightforward. Clean old races, apply grease, and install new bearings for improved function. Maintenance Essential: Regular bearing replacement prevents wheel wobble and pedaling resistance. Keep spare parts ready for quick repairs when needed. Product Specifications: Material: Steel Color: Silver Size: Outer diameter: 20mm/0.79inch Inner diameter: 11mm/0.43inch Ball diameter: 5mm/0.2inch Package contains: 4Pcs 1/5" x 6 Balls Bicycle Ball Bearing Retainer. NOTE: Please allow 1-2mm difference between actual and manual due to manual measurement. The color you actually see may be slightly different due to different displays.