Gen1 stock, stock gearing is 17/40. Top speed is limited to 194mph with those sprockets.
Gen2 stock, stock gearing is 18/43. Top speed is limited to 197mph with those sprockets.
Those top speeds are what is possible(with 186mph/300kpm limiter removed), not nesacerily what the bike will actually do.
As said, too many variables, rider size and weight, temperature, humidity, wind, elevation, ect.
A gen2 also has around 20hp more than a gen1, stock vs stock.
The reason the above equation doesn't work is, that the faster you go the harder it is to continue to go faster.
You are limited by aerodynamics, and it takes alot of hp to continue to overcome that. Until you eventually reach your limit.
I understand that the original question was probably looking for more of a guesstimate. So with 377hp, a rider that tucks into the bike well, perfect weather, near sea level, all the planets in alignment, and tall enough gearing.
Lets call it 225-235mph?
Now we can let the LSR guys argue over that, lol.