How can friction be bad when riding a bike?

While friction is essential for cycling, excessive friction can have several negative impacts:

- Wasted Energy: Excessive friction between the tire and the road or between internal bike components wastes energy. This energy is lost as heat, making it harder to pedal and reducing overall efficiency.

- Faster Tire Wear: Friction between the tire and the ground causes wear and tear on the tire's tread. Too much friction can accelerate this process, requiring more frequent tire replacements.

- Reduced Braking Performance: Excessive friction can interfere with braking effectiveness. Overheated brakes can fade, meaning they lose their ability to stop the bike effectively.

- Handlebar Vibration: Friction between brake pads and the rim or between poorly-lubricated bike components can create vibrations that travel up to the handlebars. This can make for an uncomfortable and tiring ride.

- Component Damage: High levels of friction can cause components to overheat and potentially become damaged. This includes issues like warped brake rotors or worn-out bearings.

- Slowed Acceleration: Excessive friction can increase rolling resistance, making it harder for the bike to accelerate or maintain speed.