Modeling Old School Rim in Maya

Step 25

Add edges with "Insert Edge Loop Tool" to look like on picure.

Step 26

Again add edges with "Insert Edge Loop Tool" on each hole.

Step 27

Select 20 edges.

Step 28

When you selected edges go to "Insert Edge Loop Tool" settings and turn off "auto complete" and clik on one of selected edges, and when you done press enter on keyboard .

Step 29

Extrude faces to look like on picture.