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More than just a distance. It's a destination.

With our friends at Fleet Feet moving out and expanding and Swim being less integral to our business, we have made the decision to rebrand as 40K Cycles. We think this not only better represents our offerings but it allows us to better serve our customers with more selection and choices.

40K: Bike distance in Olympic Triathlon

40K: Bike distance in the MO State Time Trial

40K: Location of the best retail bicycle store in the world! Highway 40 and K

Aventon E-Bikes

Precision built. Designed for fun. Made for you. 40K Cycles is now a stocking dealer.

Now Hiring Motivated Cycling Enthusiasts

Full-Time Service Manager Position Available

 Apply Now

click+collect. order online. free store pickup.

Shop Bikes

We Love Mountain Bikes

We have deep roots in mountain biking and we are the race headquarters of several events and experience opportunities. Visit our Events page or keep up with us on Facebook to learn more.

Shop Mountain Bikes

Shop Gear

Visit us in-store or shop an expanded selection online.

Our Professional Bike Services: We’re Here To Support You

Bike Service &

SBR Guru & Retul
 Fit System



Trek bikes logo
Specialized bicycles logo
Norco bikes logo

Aventon e-bikes

We’re Your One Stop Bike & Endurance Shop

The word is out in O’Fallon - SWIM BIKE RUN is much more than your average bike shop. We are a full-service, multi-sport store that offers training, coaching, classes and wellness services. Stop by soon for triathlon, swimming, cycling and running gear and expertise. We’re conveniently located on the corner of Highway 40 and Highway K.