The Thunder Run is an annual motorcycle ride hosted by Worth Harley-Davidson in Kansas City for the Juvenile Diabetes Research Foundation. The event is comprised of a series of concerts, a raffle, and large motorcycle ride.
The logo is intended to be something any biker would be proud of wearing. I started out with lots of lightning imagery, but the final logo references the motorcycles as the source of the “thunder” in the Thunder Run. It also nods to the pairing with the Harley Davidson brand.