Restoration and Modification of an old Hercules Roadster into 21 speed Hybrid Bike

This video tells how I converted an old Hercules roadster to a 21 speed hybrid bike
Cost Details
Painting 1500
wheelset(2) 1500
tyre(2) 450
tube(2) 220
disc brake set(2) 1400
rear derailleur 1600
front derailleur 300
crank set 550
free wheel 350
pedal set 120
gear shifters 900
handle bar 100
stem 100
seat 340
seat post 40
side stand 100
chain 200
grip 50
total ₹9800(approximate)
This is the approximate amount of the main spare parts used for the project. But it doesn't mean than the work is completed in this amount. It takes several days of work including welding, wandering for spare parts and other miscellaneous expenses.

Видео Restoration and Modification of an old Hercules Roadster into 21 speed Hybrid Bike канала Bijoy Ts