- A split aluminium shim that fits over a 25.4 mm (1 inch) steerer tube changing the outer dimension to 28.6 mm (1-1/8 inch)
- Allows the use of a stem designed to fit 1-1/8 inch steerer tubes where greater choice is available
- Black anodised finish with laser etched detail
- Headsets
- Threadless Stem Shim Adapter 1-1/8 Inch / 28.6 Mm To 1 Inch / 25.4 Mm 40Mm
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