The Next OP Critical Mass

The next Oak Park Critical Mass is Friday May 4.

Gathering around 6:30 p.m. at Scoville Park, corner of Oak Park Avenue and Lake Street, one block north of the Oak Park Green Line CTA station. The ride leaves at 7:00 p.m.

Bring a light! And ideas for a route!


September Oak Park Critical Mass

Oak Park Critical Mass
Originally uploaded by Oak Park Cycle Club.


July 7 Spindle Mass

Critical Mass
Originally uploaded by don sorsa.

July 7 Oak Park Critical Mass rode to "The Spindle" in Berwyn after wending its way through business districts and residential neighborhoods.