core4

core4 is Iowa's premier cycling experience: a celebration of community, opportunity, recreation, and engagement.
the courses route through champagne gravel, the best b roads, amazing urban experiences, and super fast singletrack. 
core4 is combining gravel forces with the Gravel Earth Series! GES shares and celebrates core4's enthusiasm for gravel experiences all over the world that showcase local community and sustainability

There are plenty of opportunities to help. Please sign up on Bike Reg to volunteer and we will keep you in the loop!

We offer camping both Friday and Saturday on race weekend! Please select tent, car, or RV camping as your option on Bike Reg when registering. There are also plenty of bike friendly hotels in Iowa City very close to the venue. Check out the FAQs on the website for more info!