A few months ago, we were introduced to Matt Harris, a motorcycle builder from Alcoa, Tennessee. His shop, 40Cal Customs builds custom motorcycles, and often uses Coker Tire products when the rubber meets the road. Leading up to SEMA 2015, Matt clued us in on a cool project that he worked out with Red Kap. The Nashville, Tennessee-based clothing company makes products that are a popular choice for automotive work uniforms, and decided to ramp up its SEMA presence at this year's show. With this increased effort, Red Kap had an awesome booth in the North Hall, and included a live motorcycle build by Matt Harris. We followed along with the progress on this Harley Davidson Shovelhead, from a bare hardtail frame and forks on Monday to a complete, running motorcycle on Friday. We love the nostalgia drag racing look, with narrow tanks, a super cool tire and wheel combination. Keep reading to learn more about the tires wheels on the Red Kap Rocket, and see more photos of this epic SEMA build.