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Working with the rear cassette.

How to show some love for your chain.

How to fix a broken chain.

How to install a brand new chain.

Diagnosing problems with your front chain ring.

Replacing a splined crank.

Pulling the cranks from the bottom bracket. Start here.

Removing an old threaded-spindle crank.

It's best to simply replace a bent derailleur hanger. But straightening it can get you a ride or two while you wait for a new part.