Draw a small circle for the front wheel
Draw a second circle for the back wheel
Add a smaller circle inside each wheel for the hubs
Draw the bicycle frame connecting both wheels
Draw the main triangle of the frame
Add the seat tube and seat post
Draw the seat on top of the seat post
Draw the handlebars above the front wheel
Add the front fork connecting the handlebars area to the front wheel
Draw the pedals in the center of the frame
Add the crank arms connected to the pedals
Draw the chain line between the front and back gears
Add the rear gear near the back wheel
Draw the front gear near the pedals
Add the bicycle seat details
Add handlebar grips
Draw spokes inside both wheels
Trace the outline neatly
Erase extra guide lines
Add final details and shading