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Greater Arizona Bicycling Association, Inc.
Where cycling is more than just riding a bike
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Tumacacori Century Challenge


Online registration is OPEN Monday August 16th and will
Close Saturday October 9th, 5:00 pm.

Each rider is required to register. Fees are per 
rider, not per bike (both riders of a tandem must register separately.) 

*  Registration fee is $25.00 for members and non-members. The fee will not increase and there is No Day of Registration.

Monday, August 16, 2021, 6:00 AM until Saturday, October 9, 2021, 5:00 PM
Ride distances are 30, 70, and 100 miles.
Just Log your ride once completed

Additional Info:
Event Contact(s):
Supported Rides
Registration is closed
Payment In Full In Advance Only
Bicycle Challenge event you ride on your own during the scheduled week of the ride. Everyone MUST wear a Helmet and obey all Traffic Laws and follow the Rules of the Road.