Is the M8 primary cover standard width or narrow ? Is that on all starting in 17 or ? All models, or some ?

 

My 2018 FLHCS (Heritage 114) has the wide primary. Just after I took delivery (within days), the dealer parts manager (a friend) asked me when I was going to convert to the narrow primary. I told him "Never, why would I?"

 

Yes, Softails changed to narrow in 2019.
My sig pic looks like Steve Sportster.