•【Premium Durability】Crafted with aluminum alloy for excellent sweat resistance and long-lasting wear resistance, ensuring extended use in various conditions. •【Precise Sizing】Specifically designed for Kukirin G3/G4 scooters, with dimensions of 41.6mm outer diameter, 30mm inner diameter, and 6.7mm thickness for a perfect fit. •【Smooth Operation】Features dual-sided sealing that locks in lubricant, ensuring smooth steering and effortless handling during rides. •【High-Quality Construction】Offering low-noise rotation and reducing front-end squeaks for a more comfortable riding experience. •【Easy Installation】Direct replacement design simplifies the installation process, requiring no additional adjustments for a hassle-free setup. •【Enhanced Protection】Equipped with rugged rubber seals for superior dustproof and waterproof performance, extending the bearing's lifespan. Specifications: •Outer Diameter: 41.6mm •Inner Diameter: 30mm •Thickness: 6.7mm •Material: Aluminum alloy •Application: for Kukirin G3/G4 scooters Package included: •1 x Bearing