Ortlieb O-strap Bottle Cage Mount

"Flexible mounting option for additional bottle cages or other accessories on the bike frame. The drill holes on your bike are not in the right place or are all already occupied? With the O-Strap Bottle Cage Mount, you can also attach bottle cages or other equipment in the position you want. The practical accessory is suitable for tubes up to 60 mm in diameter, whether on the bike frame or other components of your bike"