The CHRIS KING ISO Microspline PHB786B Free Body Axle Conversion Kit Black is a top-of-the-line spare parts kit designed for use with CHRIS KING's renowned line of hubs. This conversion kit allows you to upgrade your existing hub to accept Shimano's Microspline 12-speed cassettes. The kit includes a high-quality aluminum freehub body and everything you need to replace your existing freehub body and axle with ease. The PHB786B is compatible with all Iso LD, ISO B, and ISO AB disc brake hubs. It is easy to install and provides secure and reliable performance for your bike. The black finish on this superb quality kit adds a sleek and stylish touch to your bike's appearance. This kit is an ideal upgrade for today's modern mountain bikes, providing a smooth and efficient ride experience in any terrain. If you're looking for a durable and high-performance spare parts kit, look no further than the CHRIS KING ISO Microspline PHB786B Free Body Axle Conversion Kit in black.