The shimano slx mt55 wheelset feature angular contact bearings designed to carefully cradle the ball bearings and produce smooth rotation with radial and lateral support for a wheel with incredible longevity the contact seals have an internal grease sleeve to help protect the bearings from the elements and continue to roll smoothly ride after ride built with an anodised steel freehub that engages every 10 degrees the shimano slx mt55 wheelset gives instant energy transfer from r