According to 1 article, the 101 limiter is on the American version of the "Grand America" version, not the K1600B.
"...
BMW has speed-limited the bike to just 101 mph because of what it calls “the principle of the American Way of Riding.” It would be far less insulting for the company to simply acknowledge that a topbox can impact wheel load distribution and thereby have a negative effect on riding dynamics, stability, and safety, and leave it at that.
..."
BMW knows the USA has no Autobahn.
https://rideapart.com/articles/gold-...-grand-america