2026 Mt. Baker Hill Climb - Register NOW!

Thunderbolts Adventure

April 25 - April 26 2026
Gloucester Australia
Date Confirmed
Registration Opened: January 01 2026
 
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Distances: 105, 125 km
Difficulty: Moderate terrain with rolling short steep hills or moderate, sustained climbs

The Thunderbolts One-Day Monument – Are You Ready to Send It?

Back in 2017, a frothing pack of 40-odd legends lined up for the first-ever Thunderbolts Adventure—a beast of a ride spanning 230km of rugged gravel and 5,000m of lung-busting elevation. It was wild, it was brutal, and it was unforgettable.

Now, in 2025, The Monument is BACK. Whether you’re here to race it all-out or just survive to tell the tale, this is the ultimate test of grit, gravel, and guts in the toughest one day gravel event in Australia. 

 Thunderbolts Adventure

 
Start Located At: Gloucester, Australia
 
 
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0045 51 36 3401
 
 
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Apr 25 2026 - EVENT: Thunderbolts Adventure