If you're restoring or maintaining a classic Honda CBR400 RR NC23 from 1986 to 1989, these rear wheel bearings are a must. They're brand new, made to fit perfectly as replacement parts. The brand is Challenge, and they're intended specifically for Honda motorcycles. These bearings help keep your rear wheel spinning smoothly and safely—critical for bike performance and rider safety. No manufacturer part number listed, but they're designed to match OEM specs. Easy to install if you've got the right tools. Great for DIY mechanics, vintage bike enthusiasts, or repair shops. Keep your CBR rolling like it should without paying dealer prices. Bearings might not be the flashiest part, but they're super important for handling and longevity. Sold as a set, ready to press into your wheel hub. No EAN, but they’re a straightforward, no-nonsense component. Perfect for anyone doing a full rebuild or just tackling wear-and-tear items. Don't let worn bearings ruin your ride. Swap them out and enjoy smoother, quieter, and safer miles on your classic Honda.