タイトルまたは説明

The entire basic steering assembly is called a Triple Tree, Triple Clamp, Steering Head, Steering Head Yoke, or Steering Stem. Up until around ***5 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.