Hero hf deluxe i3s is the upgraded bike of hero hf deluxe. The main feature which comes with this upgradation is this i3s Technology. I3s stands for ideal stop start service. That means that the bike will automatically stop on standing at one place more than 10 sec and then will start as soon as we will press clucht.more ever It comes with disc brakes, extended soccer, telescopic sensor etc. Main advantage of this bike is that It have a very High and great resale value. If you will sell It on second hand It will go on more than half money of bike. In my view this is a gud and classic bike for middle class families.