Shimano

The Shimano HB-M525A hub is ideal for use with 6-bolt disc brake rotors and quick release dropouts. - Double contact sealing - Super polished bearing races for low friction rolling - 6-bolt ISO disc mounting surface

Internal O-rings, a grease sleeve, and high-quality cup and cone bearings lend this 105-level hub high durability and smooth rolling. - Internal O-rings and grease sleeve - High quality, sealed Cup & Cone Bearing - High durability and smooth rolling for sustained performance

With simple setup and reliable trail performance, the SLX front hub is perfect for custom MTB wheel builds. - Easy disc brake rotor installation with Center Lock spline mount and lock ring - Tool-free 15mm thru axle system is stiff and lightweight - Simple setup and reliable trail performance