The workshop manual states 2 notches or 8mm for road use and 8 to 12mm for track use.
If you need a workshop manual I can send a pdf version over to you.
My bike came with 4 "sides of a coin showing" for a lack of a better term.
Every new Tuono I've seen comes from the factory this way..
Sent from my iPhone using Tapatalk
Factory is 4 road use and 2 or 3 for track use.
Sent from my iPhone using Tapatalk