25.4mm

 Forged AL6061-T6 alloy construction 25.4mm clamp diameter 2-bolt faceplate 180mm long quill Matte finish with laser etched graphics ISO-Mountain safety...

 Forged AL6061-T6 alloy construction 25.4mm clamp diameter 2-bolt faceplate 180mm long quill Matte finish with laser etched graphics ISO-Mountain safety certified Mountain Quill 25.4mm 90 25.4 25? Blk AL6061-T6 Matte 180mm 1-1/8`UPC/EAN/GTIN: 072774585618

 Forged alloy construction Single bolt clamp 180mm quill length EN CITY safety certified Mountain Quill 25.4mm 80 25.4 30? Blk Ano. Alloy P...

 Forged alloy construction Single bolt clamp 180mm quill length EN CITY safety certified Mountain Quill 25.4mm 80 25.4 30? Blk Ano. Alloy Polished 180mm 1-1/8`UPC/EAN/GTIN: 888571003558

 Forged alloy construction Single bolt clamp 180mm quill length EN CITY safety certified Mountain Quill 25.4mm 80 25.4 30? Sil Ano. Alloy P...

 Forged alloy construction Single bolt clamp 180mm quill length EN CITY safety certified Mountain Quill 25.4mm 80 25.4 30? Sil Ano. Alloy Polished 180mm 1-1/8`UPC/EAN/GTIN: 888571003541

 Forged Alloy construction Classic streamlined shape 2-bolt face clamp 180mm quill length ISO-CITY safety certified Road Quill 25.4mm 80 25.4 25?&nbs...

 Forged Alloy construction Classic streamlined shape 2-bolt face clamp 180mm quill length ISO-CITY safety certified Road Quill 25.4mm 80 25.4 25? Blk Ano. Alloy Polished 180mm 1-1/8`UPC/EAN/GTIN: 072774583812

 Forged Alloy construction Classic streamlined shape 2-bolt face clamp 180mm quill length ISO-CITY safety certified Road Quill 25.4mm 80 25.4 25?&nbs...

 Forged Alloy construction Classic streamlined shape 2-bolt face clamp 180mm quill length ISO-CITY safety certified Road Quill 25.4mm 80 25.4 25? Sil Ano. Alloy Polished 180mm 1-1/8`UPC/EAN/GTIN: 072774583829