In order to fix a flat tire, it has to first be removed. For the front tire unscrew/loosen the axle, so the wheel can easily be taken out of place. Once your wheel is off, you can then replace the tire.
1. Using a tire lever, remove the flat tire.
2. Take out the flat tube.
3. Replace tube and position stem valve where it lines up in the tube hole.
4. When the new wheel is on & in position, fill with air to approximately 75% of its maximum psi.
If any extra help is needed to feel free to contact our Support Team.
NOTE: It is recommended that a trip to a local bike shop is necessary if this happens, especially if its the back tire. Assembly can get complicated and require special tools for the back wheel.
*BE CAREFUL with the brake pads, if they are moved out of position it could throw off the braking coordination.* See 2nd image below.