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Michigan Mountain Spring Classic

June 20 2026
Boyne City MI
Date Confirmed
Registration Opened: January 10 2025
 
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Distances: 50, 100, 160 km
Difficulty: Moderate terrain with rolling short steep hills or moderate, sustained climbs
Limited to: 2,000 riders Participants

The Michigan Mountain Mayhem (MMM) is a road bike event, and it is a timed challenge ride on the toughest terrain Michigan has to offer.  It will test you both mentally and physically. The MMM is one of the most grueling and challenging rides you will ever participate in. The MMM is the second or third Saturday in June, depending on when the 14th-20th falls. The 2026 event will be held on June 20th, and is limited to 1,500 riders.

Nothing compares to the hills of this ride matched up with the early season timing. Four routes to choose from: a 50K teaser, a 100K metric century, a 160K, (100-mile century), and for those who dare… a 200K double metric with almost 10,000 feet of climbing!

Michigan Mountain Spring Classic

 
Start Located At: Rotary Park, 649 State St, Boyne City, MI 49712
 
 
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+1 231-675-0789
 
 
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SAG Wagon
 
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Post Event Meal(s) Provided As Part of Entry
 
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michiganmountainmayhem
Jun 20 2026 - EVENT: Michigan Mountain Spring Classic
Jun 20 2026 - EVENT: Michigan Mountain Mayhem Spring Classic
 
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