Ride downtown with the stars Sunday

Patrick Dempsey

Ride downtown with the stars Sunday

Patrick Dempsey

Ride downtown with the stars Sunday

Ride co-host and professional cyclist Tom Danielson, who rides for Garmin-Sharp, trains in Tucson.

Ride downtown with the stars Sunday

Ride co-host and professional cyclist Tom Danielson, who rides for Garmin-Sharp, trains in Tucson.

Ride downtown with the stars Sunday

This weekend cyclists of all skill levels have a chance to push those pedals through one of Tucson's historic neighborhoods alongside actor Patrick Dempsey and pro cyclist Tom Danielson.

Patrick Finley: Pro cyclist, actor join to create ride for all

Pro cyclist Tom Danielson, left, posing with former NFL tight end Shannon Sharpe in 2010, organized Sunday's Ride On, Tucson, which will be a held on a 2.2-mile loop around downtown.

Patrick Finley: Pro cyclist, actor join to create ride for all

Tom Danielson pitched his idea. It was a simple one: The pro cyclist and his business partner, actor Patrick Dempsey - Ronald Miller from "Can't Buy Me Love" to one generation, "McDreamy" to another - wanted to put on a bike ride in Tucson.