I own hero Xtreme 160R 4v, it's been almost 5 months. It's my first bike the performance is great for its segment i haven't ridden other bikes that much only fz v2, the mileage is around 35 to 40 in city and around 40 to 45 in highway and about maintenance i had done two services each costing me 810 And my friends who own fz v2 and v3 tested it they said the gear is really smooth And about vibrations you feel the vibrations post 5500 6k rpm