The most painstaking thing in an old bicycle is a lose chain. The chain tends to come of the toothed wheel every now and then during cycling and it takes long effort to put it back again. So in this mechanical project directly a shaft is employed to transmit power. When you start paddling bevel gear arrangements transmit the power to shaft which inturn transmits this to the rear wheel again by using gearing arrangements.
For further information contact me at:
affanmandilkar04@gmail.com
