A bicycle rim is the outer edge of a bicycle wheel, providing support for the tire and inner tube. It is typically made of aluminum alloy or carbon fiber, and can be either single- or double-walled. A bent rim can affect the handling and performance of a bicycle, and can also lead to premature tire wear.
There are a few different ways to straighten a bike rim, depending on the severity of the bend. For minor bends, it may be possible to use a spoke wrench to carefully adjust the tension of the spokes. For more severe bends, it may be necessary to use a truing stand to hold the rim in place while it is straightened.