I have used these on a different motor and on my Rocket.
I lost one and found a pair of used Triumph pegs (gratitude @RKTNMYPKT).
However, I see NO reason why they wouldn't work as well or better than the Triumph pegs.
Geez...thats from a longgggggg time ago. I'm having a senior moment and can't remember. I don't think so but I will look around when I get back home next week.