3 categories; Drafting starts at 0710. Non-drafting (RAAM Qualifier) starts at 0710. 24-hour team drafting. Teams of 2-8 riders.
Age group, Gender, bike type awards.
https://www.bikereg.com/calvins-challenge-2025
3 categories; Drafting starts at 0710. Non-drafting (RAAM Qualifier) starts at 0710. 24-hour team drafting. Teams of 2-8 riders.
Age group, Gender, bike type awards.
https://www.bikereg.com/calvins-challenge-2025