Tube clamp for the large tubes (slightly bigger then 2.25") on an Ariel Atom. Should be used with plastic foot to protect frame. These are for a 1/4" shank rod end bolt with a 3/4" dia head and a 3/8" width. McMaster-Carr Part Number: 59915K272. It is for a large cable tie 8mm x 2.5mm max cross section, steel strap or hose clamp
For my Ariel Atom stuff click here.