Cleaning the rear derailleur on a road bike. Replacing the derailleur jockey wheels

Greetings, fellow cyclist.
A carbon road bike with a Shimano Ultegra groupset was brought to our bicycle workshop. This bicycle has been ridden for many years, but it has never been serviced in a bicycle workshop. Even high-level components require care and repair. In this video I will show you how to replace the rollers and clean the rear derailleur of the bike so that it looks and works like new and looks very nice.

00:00 Maintenance derailleur shimano ultegra.
00:19 Removeing the rear derailleur of the bicycle.
00:54 How to remove bicycle rear derailleur jockey wheels.
01:23 Cleaning the rear switch in gasoline.
03:17 How to clean the rear derailleur of a bicycle.
04:20 Washing the rear switch of a bicycle with a high-pressure water jet.
04:56 Why replace the jockey wheels on the rear derailleur.
05:59 How to properly install bicycle rear derailleur jockey wheels.
06:58 We tighten the bolts to limit the movement of the rear derailleur of the bicycle.
08:29 How to grease a bicycle rear derailleur.
09:42 Installation of a rear derailleur on a bicycle.

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