Take two tennis balls. Cut a groove in each. Fold the antennas at the fold mechanism and put the tennis balls on the remaining lower vertical arms. I have them on my flag holders (which keeps the cover above the folded antennas), but the concept is the same.

 

Thats what I do and its worked fine for years.

 

I like it, it's simple!
Thanks

 

Skynz has covers with re-enforcement for the antenna break over points. Never had any issues when I had dual antennas on my 2018 (removed when I upgraded the trunk)

Love my Skynz cover. Packs up smaller than many other covers.

Honda

-Please Select Your Model- Goldwing Goldwing Trike

www.skn-it.com

 

I have accumulated a few different covers and half covers. I've even loaned a few out to traveling companions or even when I wasn't along on a trip. By just being careful I haven't had any damage, although I use them rather seldom, only when the bike(s) have to sit outside at night. At home they have a place inside.
The tennis ball or some sort of protective item is probably a good idea to keep the abrasion from wind\etc from eventually wearing thru the fabric if the cover sees much use.