The brakes use friction to stop the bike and the tyres use friction to grip the road.
friction
An aerodynamic shape
no, it just reduces it
Lubbricant
The brakes use friction to stop the bike and the tyres use friction to grip the road.
friction
A bicycle has high friction at the brakes, first and foremost. Then at places where the rider holds on to the bike, Grips and pedals. Between tires and road.
reduces
speed
Friction.
An aerodynamic shape
no, it just reduces it
Lubbricant
oil in a car's engine reduces viscous friction and wear
It reduces the coefficient of friction.
Friction is what ultimately stops your bike