The bike.
Even though you and the bike are in motion the positions do not change.
You are not moving relative to the bicycle.
bicycle
Relative to the car, you are at rest. Relative to the road, you are moving if the car is in motion. Relative to the sun, you are moving with the Earth's rotation and orbit around the sun.
Albert Einstein
Relative to the car you are motionless. Relative to the road you are moving at the speed of the car. Relative to the sun you are moving at the speed of Earth as it orbits the sun (30km a second).
Yes, it is possible to imagine a bear riding a bicycle.
Because of inertia. Stuff that is moving wants to keep moving. When the bike can't go forward, it'll try to topple forward instead.
The purpose of the seat tube collar on a bicycle frame is to secure the seat post in place and prevent it from slipping or moving while riding.
you will be riding a bicycle
Yes, because you don't inherit the skill of riding a bicycle.
I am not riding
A bicycle