NOTE: The images shown are for reference only, the actual product may differ.Therefore please always read the description or read on the corresponding catalog page.
1 1/8" (28.6mm), Chrome (OEM 50905-85T)Text excerpt from the catalog:
This unique clamp makes mounting everything from headlight to seat, foot peg to spotlight an easy job. Drilled for use with up ro 1/2" (12.7mm) bolts.