If you are referring to a tracker motorcycle, which is a style of custom-built motorcycle often based on a vintage model, the front suspension can vary depending on the builder's preference and the type of riding the motorcycle is intended for.
One common option for a tracker front suspension is a set of inverted forks from a modern sportbike.
Inverted forks have stiffer and more precise handling characteristics than traditional telescopic forks, and are often favored by builders for their performance and aesthetic appeal.
Another option for a tracker front suspension is a set of traditional telescopic forks, either stock or custom-made to fit the specific build.
This can be a more affordable and practical option for those on a budget or looking for a more traditional look.
Other possible options for a tracker front suspension include springer forks, which were commonly used on vintage motorcycles, or a custom-made girder fork.
These options can add to the vintage aesthetic of the motorcycle but may not provide the same level of performance as modern suspension designs.
Ultimately, the choice of front suspension for a tracker motorcycle will depend on the rider's preferences and the intended use of the motorcycle.
It is important to consult with a reputable builder or mechanic to ensure that the chosen suspension is appropriate for the motorcycle and provides the desired level of performance and safety.