How to upgrade your bike. Replacing the drivetrain of a bicycle

Hello all cyclists. This video tutorial is about how to upgrade your favorite bike.
A cool bike was brought to our bicycle workshop. The owner loves his bike very much. He wanted to update the bicycle drivetrain.
The bicycle drivetrain will be replaced with a similar one.
I'll show you how to change the chain, cassette, bike cranks and cable on a bicycle.
At the end of the video, the bike will be like new! The owner of the bike was satisfied!)

00:00 Upgrade your favorite bike.
00:30 Why my bike became faulty.
00:46 How to remove the rear derailleur of a bicycle.
01:02 How to replace a bicycle cassette.
01:59 How to replace bike cranks.
05:17 How to lubricate the front derailleur of a bicycle.
06:19 How to install a bicycle rear derailleur.
06:45 How to quickly install a new chain on a bicycle.
07:01 How to replace the gear shift cable on a bicycle.
08:32 Bicycle rear derailleur setting.
10:43 Testing bicycle gear shifts.