T-Work’s introduce this special 5x10x4mm Hyspin bearing for the use with 1/8th GP buggy clutch bells. The ABEC5 grade bearings feature a special nylon retainer to keep the inner balls in place to let the bearing handle high RPM and high loads better than bearings of a standard design. They come with a silicone seal on one side for easier cleaning and a steel seal on the other side for less friction to create a ball race of maximum performance.