Common Bicycle Problems & Troubleshooting Guide

1. Flat Tires

- Punctures from sharp objects like glass, nails, and thorns

- Improper tire pressure

- Worn-out tires

- Tire damage from riding over curbs or potholes

2. Brake Problems

- Worn brake pads or rotors

- Misaligned brakes

- Leaky brake fluid

- Contaminated brake pads or rotors

3. Gear Shifting Issues

- Misaligned gears

- Bent derailleur hanger

- Worn chain or cassette

- Improperly adjusted gear cables

4. Drivetrain Problems

- Loose or damaged crank arms

- Worn or damaged chain

- Cassette/freewheel issues

- Bottom bracket problems

5. Wheel Issues

- Loose spokes or broken rims

- Wobbly wheels

- Bent wheels

- Misaligned axles

6. Frame Damage

- Cracks or bends from accidents or improper storage

- Rust or corrosion from exposure to water and salt

7. Handlebar Problems

- Loose or damaged handlebars

- Improper handlebar alignment

- Worn or damaged grips

8. Seat Issues

- Loose or broken seat post

- Improper seat height adjustment

- Worn or damaged saddle

9. Lighting Issues

- Faulty or damaged lights

- Weak or dead batteries

- Improper wiring

10. Other Issues

- Loose bolts or screws

- Play in the headset or bottom bracket

- Rust or corrosion on metal components

- Cracked or damaged pedals

- Malfunctioning locks or reflectors