I marked the location of the hole using the measurements @fe1rx provided in his ohlins suspension thread. Then I marked the approximate hole size using the plug as a guide. It’s been 3 or 4 years, but I think I used my dremel to slowly make the hole larger and kept test fitting until I had a snug fit.
Here are the plugs I used, 1" 1 inch Flush Mount Black...
https://www.amazon.com/dp/B00PEZS37I...p_mob_ap_share.
The plugs are a little stiff, but they have never fallen out.
here you go, post 27.
https://www.1addicts.com/forums/show...=Ohlins&page=2