You could say "Él está montando una bicicleta".
Se esta montando una bicicleta
bicicleta
Bicicleta
Yes, because you don't inherit the skill of riding a bicycle.
you will be riding a bicycle
I am not riding
A bicycle
"Little Red Riding Hood" in Spanish is "Caperucita Roja."
That's all down to how hard you're riding. Most people will use more effort when riding IRL than riding stationary bikes.
poop
A bicycle helmet is a piece of protective headgear intended to be worn while riding a bicycle.
diamondback is a good bicycle for cruising, but not for extreme riding or jumping
You are not moving relative to the bicycle.