ENDURO BEARINGS Cxd 6903 llb - xd-15 ceramic (radial) - 17x30x7

Upgrade your bicycle with the Enduro Bearings CXD 6903 LLB - XD-15 Ceramic-Hybrid. Designed for high-performance cycling, this ABEC-5 radial bearing features corrosion-resistant, cryogenically treated nitrogen steel races combined with Grade 5 Silicon Nitride ceramic balls in a proprietary process, delivering exceptional durability and smoothness. The deep-groove raceways accommodate large ceramic balls for increased contact area, enhancing performance and longevity. Dual-lip labyrinth seals protect against dirt and water, while the Kluber NBU52 grease ensures smoother operation over time, resistant to washout. Unlike typical bearings, the XD-15 ceramic-hybrid improves with use, as the super-hard ceramic balls wear in the races, making the bearing even smoother and faster. Backed by a limited lifetime warranty against wear and corrosion, these bearings are ideal for hubs and demanding cycling conditions. Available in high-carbon chromium steel, stainless steel, ceramic-hybrid, and XD-15 variants with ceramic or stainless balls, all engineered with deep groove races and full labyrinth seals for superior protection.