About 1 5" square. Found in a box of bits that are all from a Ducati, possibly 748 or 996. Thank you. Andy
@bettes, thank you Ian. Pushing my luck here, would these be common across the racing versions of 9**/748 bikes or particular to one ? Andy
Just did a search and followed a link back to the forum and found a picture of what the whole kit looks like which also showed what these are Andy