07-13-2022, 05:26 PM
Make your own strong, inexpensive, freewheel removal tool, using a car wheel nut.
The most common bikes with gears, use freewheels. There are other gear systems for bikes, but they are used on less bikes.
The tool I will describe is for the most common type of freewheel, as shown in the picture. There are freewheels which require different tools, particularly on older bikes.
To make the tool, you need a 21mm car wheel nut. I used two, which I had welded together. In the future, I hope to find a longer 21mm car wheel nut, so only one will be needed. The 21mm nut is a fraction of a millimeter larger than the inside of the freewheel. To fit, you need to file a fraction of a millimeter off each corner of the nut.
Here is a picture of the wheel nuts as I bought them.
Here is a picture of the wheel nuts after welding together.
This is used with a 21mm spanner.
The most common bikes with gears, use freewheels. There are other gear systems for bikes, but they are used on less bikes.
The tool I will describe is for the most common type of freewheel, as shown in the picture. There are freewheels which require different tools, particularly on older bikes.
To make the tool, you need a 21mm car wheel nut. I used two, which I had welded together. In the future, I hope to find a longer 21mm car wheel nut, so only one will be needed. The 21mm nut is a fraction of a millimeter larger than the inside of the freewheel. To fit, you need to file a fraction of a millimeter off each corner of the nut.
Here is a picture of the wheel nuts as I bought them.
Here is a picture of the wheel nuts after welding together.
This is used with a 21mm spanner.