MTRX bearings can be used on bicycles in various ways, such as for the frame pivot of full-suspension bikes, derailleur pulleys, bottom brackets, pedals, wheel hubs, and headsets. Essentially, they can be used anywhere on your bike where movement occurs and where the components are exposed to high levels of dirt, frequent cleaning, and high-pressure washing. For this reason, all MTRX bearings from SKF are equipped with contact seals.