59days until
the 24 Hours begin

click to register           .

   June 14-15, 2014 

Middleville, Michigan 

(updated July 11)

2013 Photos by Al Stover


A personal best, on-road bicycle ride - to test endurance and determination.

The National 24 Hour Challenge
has been held every Father's Day Weekend since 1983. 

Riders have come from most every state,
as well as more than a dozen foreign countries.

Set your goal, Join us, and achieve it!


The N24HC is a UMCA Ultracycling Cup Event

Recent Announcements

  • Rapid Wheelmen Training Rides Our friends in the Rapid Wheelmen bike club arrange a series of spring rides ideally suited for N24HC training.May 3, 2014:  Dawn Patrol Special Edition - Dawn Patrol is a ...
    Posted Mar 21, 2014, 8:45 AM by Pete Steve
  • New Sponsors - Welcome Aboard! We're pleased to announce a couple of new sponsors: Gap30 Bicycles in Wyoming and Holiday Inn Express in Hastings.Both are newly established businesses and we wish them great ...
    Posted Mar 7, 2014, 8:53 PM by Pete Steve
  • Proposed Change in Place Calculation N24HC Riders: The N24HC is contemplating a change to how places are assigned that will bring us more into line with the rest of the sporting world. In a short ...
    Posted Jan 8, 2014, 2:16 PM by Pete Steve
  • Untitled
    Posted Apr 10, 2014, 7:24 PM by Pete Steve
  • 2014 Rider Map & Rules Hot off the presses!  We have posted the 2014 Rider Map and Rules. See our Maps and Rules page.There are two significant changes in the map, both made in ...
    Posted Mar 17, 2014, 5:13 AM by Pete Steve
Showing posts 1 - 5 of 8. View more »