[attachment=76889]Screenshot_20240623_101311_Chrome.jpg[/attachment] [attachment=76890]Screenshot_20240623_101311_Chrome.jpg[/attachment] [attachment=76889]Screenshot_20240623_101311_Chrome.jpg[/attachment] [attachment=76890]Screenshot_20240623_101311_Chrome.jpg[/attachment]Track frame holes were optional on the RD4. I recently restored one that didn't have any. My recollection is that there were a couple different opinions for the hole pattern as well but i could be wrong. It is listed in the parts book.![]()