Michigan Mountain Mayhem "Spring Classic" (2026) | Course Elevation & Registration
gran fondo βœ“ Verified Active Listing

Michigan Mountain Mayhem "Spring Classic"

πŸ“… Jun 20, 2026 πŸ“ Boyne City, MI
Official Registration Page β†— Official Event Website β†— πŸ“… Google Calendar πŸ“₯ Apple / Outlook (.ics)

⚑ Dial in Your Target Wattage & Pacing for Michigan Mountain Mayhem "Spring Classic"

Use Threshold Cycling's Cycling Pace & Wattage Calculator to calculate exact FTP percentages, nutrition requirements, and estimated completion times based on course elevation and distance.

Calculate Target Wattage ⚑

🧬 Course DNA & Technical Intel

πŸ“ Primary Distance
124.3 mi
πŸ›ž Recommended Tire
28mm – 32mm All-Road
🚴 Discipline
gran fondo

🏁 Course Distance Options

50K
πŸ“ 31.1 mi
100K
πŸ“ 62.1 mi
160K
πŸ“ 99.4 mi
200K
πŸ“ 124.3 mi

About Michigan Mountain Mayhem "Spring Classic"

Official registered gran fondo event in Boyne City, MI. Direct registration on BikeReg.
Are you the race director or promoter of this event? Claim this Event Listing β†—

βš™οΈ Recommended Pro Hardware for Michigan Mountain Mayhem "Spring Classic"

Top-rated power meters, radar, and GPS computers curated by Threshold Cycling.

True Dual-Sided Road Power

Favero Assioma Duo Power Meter Pedals

$719.00

The benchmark in road cycling power meters. Instantaneous angular velocity metrics, IAV power, and Look Keo cleat compatibility.

View Product Specs β†—
45+ Hour Battery Life

Garmin Edge 1040 Solar Cycling Computer

$749.99

Solar charging lens provides up to 45 hours of battery life during demanding centuries, advanced ClimbPro elevation tracking, and turn-by-turn guidance.

View Product Specs β†—

🚴 Upcoming Cycling Events in Michigan

Explore more verified races and endurance rides scheduled in Michigan.

Barry Roubaix Fall Fondo Fundraiser Ride 2026 - Presented by Fox Subaru
πŸ“… 2026-10-11
πŸ“ Barry County, Hastings, MI β€’ πŸ“ 62 mi
← Return to All Michigan Cycling Events