Bike to Work Challenge The annual Bike to Work event now spans two weeks, rewarding commuters for putting down the Ventra card or the car keys and picking up a helmet and U-lock. Prizes will be awarded; more information can be found at bikecommuterchallenge.org. Through-Fri 6/29, kick-off rally (date to be rescheduled) Daley Plaza, 50 W. Washington, 312-346-3278, free.
Dare2tri Tandem Bike Training Grab a buddy and hop on a bicycle built for two. Dare2tri, an organization that organizes outings for folks with physical disabilities, offers training on how to ride tandem, plus information about volunteering. Arrive promptly at 10 AM. Sat 6/30, 10 AM-noon, Wilson at Lake Shore Dr, free.
Women and Trans Night BYO bike project to West Town Bikes Wednesday nights, when only women and trans individuals are allowed. Instructors are on hand to assist with everything from brake adjustments to larger-scale repairs. Attendees are encouraged to bring snacks and drinks. Wednesdays 7-10 PM, West Town Bikes, 2459 W. Division, westtownbikes.org, $10 an hour.
