Gearing Nürburgring

Going there next month (unless weather is shit). What gearing should I use? Have a 40T and a 42T rear sprocket (and 16T front) but will I run out of gears even with 40T

What bike do you have? A standard superduke or a R ?
SD = 16-38

With my SDR I use 17-36
But with the R 16-40 works fine aswell

It's a 07 SDR (so same motor as normal SD) but 122hp on rear wheel after installing

On the roads I ride and my local race track top speed is not very interesting, but wondering if I need a lower gearing on the long straights on Nürburgring to avoid hitting the rev limiter in 6th.