From an email:
“2018 is going to be a big year for station-free bike sharing in the US and even bigger for ofo. To kick off the year and share some ofo love, we’re offering free rides in all US cities for the entire month of January.
That’s right, every ofo ride in the DC area in January is free!
As ofo continues to rapidly expand across the country, we wanted to take a moment to thank our first US cities and give something back, so starting today through January 31, all rides in the DC area are on us.
How it works:
Find a bike: open the app and find all the bright yellow bikes around you
Tap and scan: when you’re at the bike, tap “unlock” and scan the barcode to automatically unlock and enjoy the ride (no promo code needed)
Park and lock: at your destination, simply park your bike and manually lock it to end the trip”