Adapts Thomson 1-1/8" ahead steerer clamp to accept a 1" threadless steerer (designed for Thomson road stems, but will also work with mountain stems).

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Adapts Thomson 1-1/8" ahead steerer clamp to accept a 1" threadless steerer (designed for Thomson road stems, but will also work with mountain stems).

  • Adapts: shim for 1-1/8-Inch stem to fit 1-Inch steerer, Clamp Diameter: N/A, Steer Tube Clamp Diameter: 1-1/8-Inch
  • Adapts: shim for 1-1/8-Inch stem to fit 1-Inch steerer, Clamp Diameter: N/A, Steer Tube Clamp Diameter: 1-1/8-Inch

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