1. At first you have to click on Lisas bicycle with the left mouse button, then you'll build out automatic the Bicycle tube.
  2. Then you have to pump it up with the Bicycle pump.
  3. Then drive to Wladimir Kalenkow's House or rather to the Courtyard from Wladimir Kalenkow's House.
  4. Now click on the Bucket.
  5. Then combine the Rubber glove with the Glue.
  6. The combine the Sticky rubber glove with the bicycle tube.
  7. Then back to the Museum and then build the Mended tube in Lisas bicycle.