Well I zeroed in on Passion pro for flat three Reasons: 1. Mileage 2. Footprint of Hero Service Centers 3. No back pain on long rides. Once I decided on the above criteria and my requirements there was no stopping me. Finally I Bought the bike, I feel really proud to be the owner of this genius baby. I am able to handle it so well, that it obeys all my controls and behaves as I say. I have ridden 3000km in the past 3 months.