The folks at the Living Streets Alliance are doing Kidical Mass Tucson on Saturday, Oct. 6. It's a kid and family friendly bike ride on the city streets that starts at 10 a.m. near the Himmel Park Library goes to the UA, loops Old Main and returns to Himmel Park for an ice cream social and treats.

There's a second Kidical Mass in the works on Oct. 27. Press release from organizers:

With the support of many partners and sponsors, including El Grupo Youth Cycling, Pima County and City of Tucson Bicycle and Pedestrian Programs, Performance Bicycles, Outdoor Nation, and Merrell, Living Streets Alliance will present a second Kidical Mass ride on Saturday, October 27th at 10:00 am beginning and ending at the Tucson Children’s Museum!

Kidical Mass began in 2008 in Eugene, Oregon, organized by Shane Rhodes, who wanted to see more families excited about using their bikes. Since it’s inception, the movement has spread to communities across the globe all in the name of having fun - on a bike - with kids!

Families will practice pedaling with the kiddos during these short, leisurely, rides. Participants are encouraged to bring their helmets, however a limited supply of children’s helmets will be provided for FREE courtesy of the City of Tucson Bicycle and Pedestrian Program. Families can also decorate their bikes in advance for increased visibility and for fun! All kids will receive stickers and “Kidical Mass Tucson” temporary tattoos.

This is a family-friendly, law-abiding ride designed to bring families together and ride safely as a group. Ride leaders and sweepers will be present to assist in making sure no one is left behind, but all parents are asked to take responsibility for their children on the road for the safety of all.

Kidical Mass is hosted by the local non-profit organization, Living Streets Alliance whose mission is to “promote healthy communities by empowering people to transform our streets into vibrant places for walking, bicycling, socializing, and play.” LSA is improving access for active modes of transportation in the region through outreach, education, advocacy and research.