Here's what I do know, this from the guys at Streetmaster about the oil in frame kit.

"They fit the modern classics (Bonneville and Thruxton)"
"Price is $849 and you get a $200 core exchange credit when you return your current cradle assemblies"


It's not speeding till you get pulled over.
https://www.youtube.com/watch?v=Bqa1s4jhkQ8