3 categories; drafting begins at 0705. Non-drafting begins at 0705. 12-hour team drafting. Teams of 2-8 riders.
Age group, Gender, bike type awards.
https://www.bikereg.com/calvins-challenge-2025
Race Type: 12 Hour
3 categories; drafting begins at 0705. Non-drafting begins at 0705. 12-hour team drafting. Teams of 2-8 riders.
Age group, Gender, bike type awards.
https://www.bikereg.com/calvins-challenge-2025