Upgrade your bicycle's performance with the 6902 Sinc Hybrid Ceramic Bearing - the ultimate choice for precision, durability, and efficiency in hub and axle applications. Designed specifically for 15mm thru-axle hubs, this high-end bearing features advanced materials and engineering to optimize your ride. Materials & Construction Constructed with silicon nitride ceramic balls, these bearings deliver outstanding toughness and wear resistance, significantly reducing friction and rolling resistance. Precision-ground steel alloy bearing rings are engineered for seamless compatibility with ceramic components, ensuring high tolerances and smooth operation. The combination of ceramic and steel materials provides superior durability and minimizes energy loss during pedaling. Performance & Engineering The 6902 Hybrid Ceramic Bearing is engineered for low-friction performance, making it perfect for high-performance mountain bikes, road bikes, and gravel bikes. The ceramic balls' hardness reduces heat buildup and extends bearing lifespan, even under tough conditions. Its precise geometry ensures excellent load distribution and smooth rotation, translating into improved efficiency and faster response during rides. Innovative Features Silicon nitride ceramic balls for maximum toughness and minimal rolling resistance Precision-ground steel alloy rings for high tolerance and durability Designed for 15mm thru-axle hubs; fits standard 28mm O.D. axle interface Dust cover positioned internally (black) for protection, with an external tan seal to guard against dirt and moisture Compact 7mm width ideal for lightweight and streamlined bike designs Style & Use Case Perfect for serious cyclists demanding optimal efficiency and long-lasting components, this bearing is suited for upgrading hubs on mountain, road, or gravel bikes. Its durable ceramic construction reduces maintenance intervals and ensures consistent performance whether you're tackling rugged trails or high-s