Tuned Or Not

Hi
I usualy ride older bikes but recently i bought a "newer" triumph street triple 765r 2018y. Im new to triumphs and i must say im very impressed. So i bought the bike with only 5k km or roughly 3k miles and it has as it seems full exhaust by scorpion. I assume its full because it only now startet to colour itself. So anyways im wondering if its possible to know if the bike was ever tuned or do i have to put it on dyno. Im suspecting it was tuned because its fueling its spot on but dont trust me i came from carbouratted bikes XD. And it pulls very nice for its specs and i assume non tuned bike would sputter and not slam on the limmiter in 6th gear. It tops out at 242kmh or 150mph but it has alot more power to go so i dont know if they are geared that low. So yeah if you know how to spot tuned bike please help.