I'm trying to find out if my bike ( '06 Trek Session 10) has ISCG05 or the older ISCG mounts. I know ISCG05 has a larger BCD but I'm not sure if I'm measuring it correctly. With the bike upright I measured from the bolt at 12 o'clock to the bolt at around 7 o'clock and came up with 73mm give or take on my digital caliper. I'm assuming it would be ISCG05 because it's a newer model also. If anyone knows for sure I would appreciate it!