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   June 14-15, 2014 

Middleville, Michigan 

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

  • 2014 Taillight Rules It has come to our attention that the 2014 Rules document has an internal conflict regarding blinking vs constant-burning red taillights.It is our intention to eliminate blinking taillights ...
    Posted Jun 11, 2014, 8:03 AM by Pete Steve
  • 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
Showing posts 1 - 5 of 9. View more »