Thunder Bay Thriller

Rise to the challenge at this rugged multi-surface event in NE Michigan – choose from a 62-mile main course or shorter 27- and 16-mile options. Expect gravel backroads, snowmobile two-tracks along Devil’s Lake, woods and trail systems, and a finish that feels like victory over grit and terrain. All proceeds support the Rock CF Foundation, so each push of the pedal counts for something bigger.