How do you take the freewheel apart on back of a 20in bicycle wheel?

To take apart the freewheel on the back of a 20in bicycle wheel, you will need the following tools:

- A chain whip or a freewheel remover tool

- A lockring spanner or a large adjustable wrench

- A flat-head screwdriver

- A hammer

1. Remove the wheel from the bike.

To do this, you will need to loosen the axle nuts or bolts on both sides of the wheel. Once the nuts or bolts are loose, you can slide the wheel out of the frame.

2. Locate the freewheel.

The freewheel is the assembly on the back of the wheel that allows the wheel to move forward but not backward. It is located on the right (drive) side of the wheel.

3. Remove the lockring.

The lockring is the large nut that holds the freewheel in place. To remove the lockring, use the lockring spanner or large adjustable wrench to turn the ring counterclockwise. Be sure to hold the wheel steady with your other hand.

5. Remove the freewheel.

Once the lockring is removed, you can use the chain whip or freewheel remover tool to remove the freewheel. To do this, place the chain whip or remover tool on the freewheel and turn it clockwise. The freewheel should come off easily.

6. Clean the freewheel.

Once the freewheel is removed, you can clean it with a degreaser and a brush. Be sure to dry the freewheel thoroughly before reinstalling it.

7. Reinstall the freewheel and lockring

Follow the steps in reverse to reinstall the freewheel and lockring. Be sure to grease the threads of the lockring before reinstalling it.

8. Reinstall the wheel

Slide the wheel back into the frame and tighten the axle nuts or bolts. Be sure to tighten the nuts or bolts evenly so that the wheel is securely attached to the frame.