Actor Patrick Dempsey and pro cyclist Tom Danielson will take part in "Ride On Tucson" today from 1:00 p.m. to 4:00 p.m., in the Armory Park neighborhood.
The idea is to celebrate the bicycling community in Tucson and Pima County.
The 2.2 mile route will be closed to vehicle traffic. Cyclists of all ages and abilities are invited to take part.
If your bike isn't ready to ride, mechanics will also be on hand to fix flat tires and do other minor repairs.
Helmets are required for the event.
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