Join and ride with our app.

Download on the App Store Get it on Google Play




How It Works


Enter your bike's number into the app and tap "START RIDE". You'll get a code to open and close the lockbox.


Use the key from inside the lockbox to operate the U-lock that attaches the bike to its station. Close the lockbox before you ride.


Have fun and stay safe! Use the U-lock to keep the bike secure if you make stops along the way. Your lockbox code will continue to work during your ride.


When you're done, lock the bike back to a Yale Zagster station and close the lockbox. Then go to the app and tap "END RIDE".

You can also borrow bikes using SMS text messages. Check out our Support page for more info.

Meet the Bike


  • Adjustable seat height fits adult riders
  • Activate the front and rear lights at night
  • Keep the U-lock in the basket while you ride
  • 7 gears of shifting lets you ride anywhere
  • Fenders and a chain guard keep you clean


Membership in the Yale bike share program is open to members of the Yale community, including students, faculty, and staff. In order to join, you must be: At least 18 years old AND have a email address
While you are using a Zagster bike, you are free to ride it wherever you like. If you want to make a stop, you must lock the bike to a secure object (but never just lock the bike to itself).

Before you end your bike trip, you must return your bike to a Yale Zagster station. Trips may never be ended unless the bike is already locked to a Zagster station. Do not leave a bike anywhere else unless you have an active trip on the bike. Riders may be held liable for replacement of lost bikes.

Nope, you cannot leave a Zagster bike locked anywhere other than a designated Zagster station unless you have an active trip on the bike. We LOVE that you like riding Zagster, but this is a bike sharing program for everyone. Please leave bikes where everyone can access them.
Only Yale bike share members are allowed to check out bikes, and you may only check out one bike at a time. Everyone who rides a Zagster bike is required to have their own Zagster membership and to have signed our Rider Agreement. If you know someone else who wants to ride, just have them sign up . It's fast and super easy!

Please contact us right away with details on what's happening:

Text the word "Issue" to 202-999-3924 OR Email OR Call us at 202-999-3924

Then, return the bike to the nearest Zagster station. Once it's locked there, end your trip. We'll get the bike fixed up, but in the meantime you're free to start a ride on a new bike and get on your way.

If you believe your Zagster bike has been stolen, immediately contact your local police department and building security to file theft reports.

You are obligated by your Rider Agreement to alert us as soon as possible in the event of any potential loss or theft of Zagster bikes. Call Zagster at 202-999-3924 and we’ll walk you through what to do. We’ll also email you an Incident Report that you’ll need to complete. You may be charged for the cost of replacing a lost or stolen bike.

Zagster strongly recommends that you wear a helmet while riding.
Zagster riders can buy Bern helmets at a huge discount. Shop Bern online and enter the code Zagster15 at checkout to get your own. You may also wear your own helmet from home.