49.6mm to 34mm Headtube Reducer

Reduces head tube inner diameter from 1.955" (49.6mm) to 1.333" (34mm) , allowing for use of smaller headset cups.

  • Outer Cup Diameter: 1.955"
  • Inner Diameter: 1.333"
  • Cup Insert Depth: 0.495"
  • Cup Lip Thickness: 0.050"
  • CNC machined aluminum
  • Black anodized finish
  • 2 pieces per bag


Note: Measure your existing headset cups and inner diameter of frame's headtube for exact fit before ordering.

Precision Machined


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