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August 19 @ 8:00 am - 5:00 pm


core4 is Iowa City’s new premier cycling experience and routes through champagne gravel, the best b roads, amazing urban experiences, and super fast singletrack.

Who: EVERYONE. A sliding scale is our way to challenge economic injustices and offer access to folks at the local level. Share what you can. $65, $85, or $105. As always, juniors ride for FREE.

New Rider Only codes for women and non-binary $50: CORE4FEMME, CORE4NONBINARY

What: The greatest gravel event this side of the galaxy! That just happens to also include singletrack, pavement & b-roads.  25, 50, and 100 mile options. All the cats. All the peeps included. New this year: Official age cats!

When: Saturday, August 19, 2023, Rain or shine (yes, we have a wet route).

Where: Wilson’s Orchard. 4823 Dingleberry Rd NE #1, Iowa City, IA 52240 The most beautiful place on the planet earth! Sign up for free camping and be sure to choose your camping style: tent, car or RV.

Why: Community. Opportunity. Recreation. Engagement. Because last year was insane. And 2023 is going to be even rowdier. To get all bodies on bikes thanks to our local bike advocacy partnerships: Iowa City Bike Library, Iowa Coalition of Off Road Riders, Neighborhood Centers of Johnson County, Corridor Devo Junior Cycling Team.

How: Start training NOW. And tell everyone you know why you are coming to Iowa City in August. Stay tuned for official training events next spring! Follow along at @core4.bike to get in on all the behind the scenes action. 

Have more questions? Check the site FAQs or check www.core4.bike for more information!


August 19
8:00 am - 5:00 pm


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Wilson’s Orchard & Farm
4823 Dingleberry Rd NE #1
Iowa City, IA 52240 United States
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