Hey everyone, I'm new here and just started building my first streetfighter! I'll be posting a build thread soon. So I have a question! I have a 1990 gsxr 750, I have just recived some wave disc rotors for the front end. But the off set of the oem rotors is 5 mm and the new one's 16 mm. Two companies I found online list the part I brought to suit my modle bike! If any one knows the original disc off set for my 1990 gsx-r750, the help would be much appreciated. Cheers!