How to adjust the seat on the bike?

Use the Allen key (small, L-shaped tool) provided in the lock bag to adjust your seat to your perfect height. 

Step 1: Hold the allen key on the long side. 

Step 2: Loosen the seat post bolt anti-clockwise

Step 3: Adjust the saddle height to your preferred height. Usually your hip height is a good height for your saddle to begin with, but adjust until you feel comfortable riding.

Step 4: Make sure that the nose of the seat is aligned with the frame of the bike. 

Step 5: Tighten the bolt again, this time clockwise.

Step 6: After you tightened it, try to move the seat left and right. If it moves, align the seat again and tighten the clamp until it doesn't move anymore.