Nukeproof Enduro 6902 ABEC5 V2 Hub Bearing This bearing is specifically designed for use with the Nukeproof Horizon and Neutron V2 range of wheels. It features a hard-wearing, high carbon chromium alloy race with graphic/nylon ball retainers. This makes it incredibly durable and more than capable of handling all the intensity that comes with shredding the mountain bike trails. This superb bearing sets the benchmark for high precision bearings. ABEC-5 LinePart of an updated ABEC-5 line of wheel hub bearings, this 6902 bearing is the revised LLU/LLB dual seal model. The ABEC-5 Dual Seal bearing places a LLU full contact seal on the outside facing surface of the bearing, while the Inboard facing LLB medium contact seal offers less drag. Its specific seal increases the lifespan of the bearing and offers excellent performance. High precision balls are within 5/1,000,000’’ round. This is military level specification, used for precision equipment. R-64 hardness, of the highest grade. This bearing will also fit many other hubs that use this size of bearing.This superb bearing sets the benchmark for high precision bearings.Features: Material: High Carbon Chromium Alloy Races with Graphite/Nylon Ball Retainers Bearing Code: 6902 Dimensions: 15x28x7mm ABEC: 5 Grade: 10 Seals: LLU/LLB Grease: Mobil XHP 222 Nukeproof Part Number: NUKHORV2B6902 Approx Weight: 15.1gBuy Nukeproof Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.