Transform > Modify > Rotational Scale

Scales picked objects around a rotational point.

Access this tool from the Transform tool palette by doing either of the following:

Rotational Scale Options

Scale

Stretch the object rotationally.

Number of Divisions

Change the number of rotational sections (such as the spokes on a wheel).

When this option is on, the tool prompts you to specify the number of divisions that the model has now, and the number that you want it to have.

For example, for a wheel with eight spokes, you can type in a value of 8, then reduce it to 4.