Bike usage information

Questions related to the usage information of bicycles, such as frame number, electrical technology and usability

• Why doesn’t my bicycle headlight switch off/on with the light button?
• When and how should I switch gears on my bike?
• Does my e-bike support a mobile application?
• How should I store the battery of my e-bike?
• Can I find out the color code of my bike?
• Where can I find user manuals for my bike?
• My chain is skipping on the rear sprocket, why is this happening?
• How can I cycle in a way that maximizes the lifespan of the drivetrain?
• Can I determine the manufacturing date based on the frame number?