1. Width
The 1999 Fat Boy wheels are 2.15 inches wide, while the 2001 Fat Boy wheels are 2.50 inches wide. This means that the 2001 Fat Boy wheels are wider by 0.35 inches.
2. Spoke Count
The 1999 Fat Boy wheels have 40 spokes, while the 2001 Fat Boy wheels have 48 spokes. This means that the 2001 Fat Boy wheels have 8 more spokes than the 1999 Fat Boy wheels.
3. Construction
The 1999 Fat Boy wheels are made of steel, while the 2001 Fat Boy wheels are made of aluminum. This means that the 2001 Fat Boy wheels are lighter than the 1999 Fat Boy wheels.
4. Finish
The 1999 Fat Boy wheels are available in a variety of finishes, including chrome, black, and silver. The 2001 Fat Boy wheels are also available in a variety of finishes, but they are also available in a special "Black Ops" finish that is not available on the 1999 Fat Boy wheels.
Overall, the 2001 Harley Fat Boy wheels are wider, have more spokes, are lighter, and come in a wider variety of finishes than the 1999 Harley Fat Boy wheels.
