Bearing 61903/18 Standard

Engineered for unparalleled low friction and exceptional durability, optimizing power transfer and efficiency in high-performance cycling components.

The CeramicSpeed Bearing 61903/18 Standard is a precision-engineered ceramic bearing designed to provide a significant upgrade in performance and longevity for your bicycle's rotating parts. Featuring high-quality CeramicSpeed balls and robust steel races, this bearing dramatically reduces friction compared to traditional steel bearings, ensuring smoother operation and more efficient power transfer. With its precise dimensions (standard 61903: 17x30x7mm), it is compatible with various cycling applications, including certain hubs, bottom brackets, or specific suspension pivots, offering a tangible improvement in ride quality and component lifespan.

• Standard CeramicSpeed balls for ultra-low friction and enhanced efficiency.
• Durable steel races provide long-lasting performance.
• Precision engineered for smooth rotation and reduced mechanical drag.
• Optimizes power transfer and contributes to extended component lifespan.
• Ideal for upgrading hubs, bottom brackets, or other bearing-dependent cycling components where maximum performance and longevity are desired.