core4.bike

core4 is Iowa’s premier run + ride experience: a celebration of community, opportunity, recreation, and engagement on all 4 surfaces. gravel. pavement. b-roads.

singletrack.

08/05/2026

It’s happening next week! Come for packet pickup+ rider meeting, hit the orchard run, + stay for live music + a family-friendly fiesta. PARTY PLATE FOOD TICKETS MUST BE PURCHASED IN ADVANCE BY Sunday, AUGUST 9th!

We’ve got the pre-game gravel fiesta of the year presented by Pomoni. The best Greek olive oil will flow freely on August 14th as Pomoni presents the Friday Night Fiesta at Wilson’s Orchard.

Bring your crew! Good vibes, great food, + orchard sunsets included.

Stay tuned later this week for the manifesto including the official 2026 routes!!

07/31/2026

core4 is now fully Modifi !!! Your race day awaits....and they bring it.

Hydration & Recover powder for that focus, fatigue, and stamina. Great hemp-cannabinoids, B-vitamins, and Electrolytes.

Sport Stick. Got a nagging spot ? Forget abou’it. Pain, Inflammation, Muscle & Tendon recovery. It’s got you covered for core4. Punching thru with natural CBDA hemp-extract, Arnica, Cayenne, Shea Butter, and Coconut.

Recovery gummies. This is your pre- & post-race nectar.

Check their tent out Friday night, Saturday morning, and post-race for samples!

07/29/2026

Bike plates are for collecting. TODAY! is the last day to register so that we can have one printed with your name on it waiting for you. Or be forced to pull a last minute DIY Sharpie write in. Let us do it for you. Really. We want to!

07/27/2026

Volunteers make the core4 dream work. None of this would be possible without the blood, sweat, + tears of the dedicated core4ians. Share your talents + passion for community! Join the trail crew, venue build team, packet pickup crew, course marshals gang, welcome returning athletes, + much more! Pick your pleasure + tell us your shirt size to get your official core4crew uniform!

Sign up link in bio!

07/18/2026

Get your core4winds training ride on. Or, if you’re brave enough… ride all four in one day.

Massive congrats to Noah Butler and Jrfm Richer for completing all four training routes in a single ride!

150 miles. 7,500 feet of climbing. Under 11 hours. Every surface. One unforgettable day.

They earned more than bragging rights—they’ll be rocking a free core4 kit on race day.

Now it’s your turn. Ride any of the core4winds routes and grab your sticker from:
World of Bikes
Sugar Bottom Bikes🚲
Bike Library
geoffsbikeandski

Or collect all four in one day.
Dayum.

07/16/2026

The urban experience.
Now with a 70-mile option.
The 120 always gets gritty here. Now there’s another way in.

07/14/2026

Don’t miss out on this year’s merch! Thanks to the {made} community team for bringing the core4 aquatic vibe to life. This year’s water-themed colorway is one you’ll want to rock long after the weekend is over!

The merch deadline hits + registration pricing jumps after July 14!

Don’t wait. Don’t miss out. Register today, lock in your merch, grab your Friday Night Fiesta plate ticket + we’ll see you there. One month and counting! We can’t hardly wait.

07/11/2026

Water changes everything.

Follow the source.

Feel the experience.

07/10/2026

Y’all remember the hellacious storm from last year?! If you were there, then you already know it’s etched into core4 lore as the mud year. This year’s Friday night run start line will be at the top of the main arch alongside the party! core4 Orchard Run v2 offers double the distance for a little extra spice to the sauce. Lululemon + Fitness Sports are back in as sponsors. Let’s go!

Address

Iowa City, IA

Website

http://core4.bike/

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