When you're looking to customize your engine, the more power the better, that's why you're going to want to let your mechanic know that you want bigger bore in yours. Whether you're new to engines or not, we've got this new shirt in stock so you can let everyone know that your ride has serious horsepower. Sporting a classic 1950s style design, it almost feels like you could've found this mechanic back at the beginning of the motorcycle boom. Well, minus the skull for a head, of course.
