Gears in the drivetrain of a bike.

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14
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3answers
1k views

Should I clean the grease off the gears?

I usually keep my chain well lubricated. However, my gears are usually greasy. Should I be cleaning the gears or are they supposed to be greasy?
7
votes
1answer
853 views

Rear Derailleur Cage Lengths

What effect does the length of the cage on a rear derailleur make to bike setup/shifting?