WCD Bart Swings Bearings – Engineered for Champions The WCD Bart Swings bearings are high-performance race bearings developed in close collaboration with Olympic and World Champion Bart Swings. Designed for elite inline speed skaters, these bearings offer exceptional rolling efficiency, durability, and race-level precision straight out of the box. Crafted with high-grade chrome steel inner and outer rings and high-grade ceramic balls, each bearing is precision-machined and individually tested to ensure smooth, consistent spin. The light synthetic oil lubrication minimizes friction for maximum speed, while the removable low-friction shields keep out dirt and moisture, making maintenance quick and easy. Ideal for marathons, track racing, or intense training, the Bart Swings bearings deliver the kind of responsive, effortless glide that professionals demand. Whether you're chasing gold or personal records, these bearings are built to perform when it matters most. Lightweight, ultra-smooth, and competition-proven, the WCD Bart Swings bearings represent the pinnacle of inline racing technology. [ "Segments: Inline Skating, Racing", "Net weight (kg): 0.187", "Gross weight (kg): 0.196", "Packaging Size: x x ", "Weight: 0.196", "VPE Packaging: x x ", "Warranty: 2 Years", "Release Year: 23", "Bearing Brand: Wicked", "Number of Balls: 7 Balls", "Bearing Standard: 608 standard", "Bearing Shield: RZ,single sided rubber coated steel shield", "Material Bearing Balls: Si3N4 Ceramic", "Material Bearing Cage: Nylon", "Material Bearing Rings: Special hardened chrome steel", "Bearing Lubrication: High temp oil