Experience the Thunder Bay Thriller

We pride ourselves on creating a day where the challenge of the terrain is matched only by the camaraderie at the finish line. From rolling gravel backroads to the technical excitement of snowmobile two-track and winding forest pathways, this event showcases the very best of Michigan's diverse landscape. Join us for a day of dirt, sweat, and smiles as we celebrate the gravel cycling community.

What to Expect

Diverse Terrain - A unique mix of gravel backroads, snowmobile two-track, and forest pathways that keep every mile interesting.
Scenic Beauty - Ride alongside the picturesque Devils Lake and through the serene woods of the Norway Ridge Pathway.
Supportive Atmosphere - Whether you are racing for the podium or riding for the personal challenge, our community is here to cheer you on.
Fully Stocked Aid Stations - Stay fueled and hydrated with well-equipped support stations positioned strategically throughout the courses.
Series Participation - Proudly featured in both the Michigan Gravel Race Series and the I Love Gravel Race Series for a competitive edge.

Course Descriptions

We offer a variety of distances to ensure every rider finds their perfect challenge. Please review the options below to choose the route that best fits your goals.

Course	Description	Terrain Highlights
Ultra	100-mile endurance challenge for the experienced rider.	Full tour of local gravel, two-track, and trail systems.
Long	62-mile signature gravel grinder.	Rolling backroads, Devils Lake views, and Norway Ridge trails.
Medium	31-mile course for those wanting a solid mid-distance effort.	Indian Reserve Rd, Devils Lake, and Norway Ridge Pathway.
Short	15-mile introductory route for newer riders or those seeking a shorter day.	Accessible gravel and scenic local pathways.

Event Highlights

The Thunder Bay Thriller is designed to be a full experience. Beyond the ride, we focus on the post-ride vibe that makes gravel cycling special. Expect a vibrant atmosphere at the start and finish lines, with plenty of opportunities to connect with fellow cyclists, share stories from the trail, and enjoy the local hospitality of Alpena. We are dedicated to providing a safe, well-marked, and enjoyable event for everyone, complete with mechanical support, clear course markings, and an enthusiastic team of volunteers ready to help you succeed. Come for the ride, stay for the community, and leave with memories of an unforgettable day in the woods.

Thunder Bay Thriller Course Breakdown

Frequently Asked Questions

What kind of bike do I need for the Thunder Bay Thriller?

Because our routes feature a mix of rolling gravel, snowmobile two-track, and single-track sections, a gravel bike with at least 35mm-40mm tires is highly recommended for comfort and traction. Mountain bikes are also a fantastic, capable choice if you prefer a bit more suspension for the woods of the Norway Ridge Pathway.

Are these routes suitable for beginners or just experienced racers?

We love welcoming riders of all skill levels to the community! While the 100-mile Ultra is designed for seasoned endurance athletes, our 15-mile and 31-mile options are perfect for those looking to enjoy the scenery at a more relaxed pace.

What can I expect at the aid stations along the course?

We provide well-stocked aid stations to keep you fueled and hydrated throughout your ride. You can expect a variety of hydration options, energy snacks, and friendly volunteers ready to cheer you on and help you get back on the trail quickly.

Is there a post-ride celebration for participants and spectators?

Absolutely - the post-ride community atmosphere is a huge part of the Thunder Bay Thriller experience! Stick around after your finish to share stories with fellow riders, enjoy some local food, and celebrate your accomplishment together.

How should I prepare for the different surface types on the route?

The route varies from smooth gravel to more technical two-track and single-track sections. We recommend practicing on varied terrain before race day to get comfortable with handling your bike on loose surfaces and navigating through wooded trail sections.

Where can I find the most up-to-date information regarding registration and start times?

For the latest details on start times, registration deadlines, and parking logistics, please check the official event website. We update that page regularly to ensure you have everything you need for a smooth race day experience.

Rock CF Foundation

Thunder Bay Thriller