Before his passing, Tom Monahan created the official logo of the Sturgis Motorcycle Rally.
Today, 27 years later, Tom's T's continues to be the number one stop for bikers looking for Rally apparel.
The famous store front is stocked for the week and six vendors throughout Sturgis also carry Tom's T's.
The shop where all the shirts are made prints year around, but during Rally week workers can print as many as 5,000 t–shirts on busy days.
Monahan's son-in-law, Ethan Dschaak, says now is the time of year when they need all the help they can get.
"When you have the volume of folks that came into town you need to have more people staffed and more people working weather that be sales clerks the guys out in the back room."
Royalties from the Rally go back to the Sturgis Chamber of Commerce and community projects.