MBP Steering Bearings

The entire basic steering assembly is called a Triple Tree, Triple Clamp, Steering Head, Steering Head Yoke, or Steering Stem. Up until around 1985 most, but not all, bikes used loose ball bearings for their steering races. These bearings have upper and lower outer races that are a tight press fit in the frame and a lower inner race that is press fitted to the steering stem. The upper inner race is a loose fit.