Fulcrum Ball bearing kit USB Ceramic, RS-150 Kit for 1 rear wheel Racing Zero

The Fulcrum RS-150 USB is a high-performance rear hub for bicycle components, equipped with advanced bearing technology for smooth rotation and durability. This hub utilizes USB technology (Ultra Smooth Bearings) with precision-engineered ball bearings that reduce friction and provide consistent performance under various riding conditions. The RS-150 model is made from a lightweight and robust aluminum alloy, offering reliable strength without excessive weight for your bike setup. It features a standard quick-release axle system compatible with most road and hybrid bike frames, with axle dimensions of 135 mm width. The hub shell is designed for optimal spoke alignment with 32 spoke holes in standard drilling. The freehub body is compatible with 8-, 9-, 10-, and 11-speed cassettes from leading component manufacturers. The sealed bearing construction protects internal components from moisture, dust, and dirt, extending maintenance intervals and preserving performance. The hub weighs approximately 380 grams and contributes to the overall weight reduction of the wheelset. Precision machining ensures accurate bearing alignment and smooth engagement of the ratchet mechanism. The black anodized finish provides corrosion resistance and maintains its appearance over time. Installation requires standard bicycle tools and appropriate wheel-building knowledge for optimal performance. This hub represents Fulcrum's commitment to engineering quality components that balance performance features with long-term reliability for cycling enthusiasts.