2021 R nineT Option 719, Triumph Bobber
I have also taken the Zanderk route. I had a pair of Fiamm hi and lo tone horns on the Triumph powered by a relay so I used one of these. Though I didn't have Zanderk's patience to fit the Fiamm in place of the oem unit. I just used the bracket that came with the Fiamm as there is a convenient hole in the frame and left the factory horn in place.